Logo

See also The Stand Dating Table Return to Notes and Queries

Objective Dating Table

The following table lists those objectives examined to date. There really is not enough data here to arrive at any sort of conclusion. The key to arriving at a reasonable dating system is more data. It certainly looks as if batches of numbers were released for particular styles of objective, but the batches not in number/chronological order, though the objectives within each batch probably are in chronological order.
The column representing the Name Inscription has the following codes used:-
  • A - W. Watson & Son
  • B - W. Watson & Sons
  • C - W. Watson & Sons Ltd
  • D - Overlapping Ws
  • E - WATSON
  • N - No inscription
  • U - Unknown (not examined)

3
Objective Number
Working distance
Type
Date (if known)
Name
Notes
10240 1/6th Para - - -
10564 1/12" N.A. 1.25 Utility - - Black/Chrome.
11933 x96 1/12" N.A. 1.25 Utility - - Black/Chrome. Oil
13615 16mm. N.A. .28 - - - Black and Brass
13679 4mm. N.A. .70 - - - Black and Brass
14695 1/12 oil. imm. Versalic - - -
16153 2/3rds Para - - -
184067 1/6 Argus - - -
18587 1/6 in. Para 22nd November 1935 - Black and Brass
186346 2/3" - 11.3.37 - .
18705 2/3 in. Para 22nd November 1935 - Black and Brass
21695 1/6" N.A. 0.70 Para - - Brass.
26312 2/3" Para - - Brass/Chrome.
26816 1/6 Para 2nd January 1941 - -
27014 2/3 Para 2nd January 1941 - -
45138 4mm Para 18.3.60 - .
48676 x40 4mm N.A. 0.70 Para 26.10.60 - .
5036 1/6 Para - - Black and Brass
569813 x10 N.A. 0.30 - - - Chrome. Blue ring
9183 1/12 Utility - - -
B1523 25mm Para 5.1.51 - .
B16329 x6 25mm N.A. 0.21 - - - Black/Chrome.
B2385 6mm Para 5.1.51 - .
B24344 2mm Para 19.1.55 - .
B24434 4mm Para 19.1.55 - .
B24763 16mm Para 19.1.55 - .
B26422 x40 Para 1956 - Black and Chrome - Service II style
B30487 x10 Para 1956 - Black and Chrome - Service II style
C5105 2mm Para - - All steel - Service II style [HC]
E1293 2mm Fluo. 18.3.60 - .
E1467 x10 16mm N.A. 0.30 Para - - Black/Chrome.
E3944 16mm Fluo. 18.3.60 - .
E3972 16mm Fluo. 18.3.60 - System 70 type.
300 8mm N.A. 0.65 Holos - B Brass. 160mm Tube length
458 16mm Holos - B 250mm Tube Length All Bright Brass
4582 1/6 Para - D Black and Nickel[HC]
1046 2mm N.A. 1.37 Apo. - C Brass.
1062 1/12" Versalic - C Brass.
1080 1/6 No type - C Bright Brass and nickel - Tapered Style
1107 8mm N.A. 0.65 Apo. - C Brass. 200mm Tube length
111224 4mm Holos - C All Silver Nickel
11663 2in. Para - C All Black - Tapered pattern
14936 1/12" Versalic - C Black/Chrome. Oil.
1550 1/12 Versalic - C Black/chrome/brass - Tapered Style
15504 1/6 Para 30th September 1930 C -
15718 1/12 oil imm. Versalic - C Black and Nickel with iris
18004 1/6 Para 10th September 1935 C Black and Chrome - Tapered Style
18172 1/12 Oil 24th May 1946 C Black and Chrome - Tapered Style
18197 2/3 Para 10th September 1935 C Black and Chrome - Tapered Style
21685 1/12 oil imm. Versalic - C Black and Chrome - Tapered Style
22173 1/12 oil imm. Versalic Metallurgy - C Black and Chrome - Short - Tapered Style
2355 2mm oil Imm. Holos - C Brass and Nickel
2378 1/12th Holos - C Brass and Nickel
3657 4mm Holos 11th August 1941 C All bright Brass
3658 1/6" - - C Brass. Metalurgical
3684 1/6" N.A. 0.74 Para - C Brass/Chrome. Tapered
4314 1/12 Versalic - C Black and Chrome - Tapered Style
6445 25mm Holos 11th August 1941 C All bright Brass
7212 1/6" N.A. 0.74 Para - C Brass/Chrome. Tapered
7355 16mm Holos 11th August 1941 C All bright Brass
8545 16mm Holos - C All Bright Brass
8649 4mm N.A. 0.95 Holos - C Brass. 160mm Tube length
9276 2in. Holos - C All Bright Brass
10133 1/12 Utility - D Black and Chrome
10552 1/12in. Utility - D Black & Chrome- Tapered pattern
10561 1/12" Utility - D Black/Chrome. Oil. Corr. Collar
10638 1/4 Para - D Black and Nickel[HC]
11690 1/12in. Utility - D Black & Chrome- Tapered pattern
12667 x40 N.A. 0.85 Apo - D Turquoise ring.
12790 x40 N.A. 0.65 Para - D Phase, green ring.
13192 1/6" N.A. 0.70 Para - D Brass.
13305 x40 Para - D MicroSystem 70
13462 x100 N.A. 1.30 Para - D Oil, red ring.
14354 1/6" N.A. 0.70 Para - D Brass. Tapered
14768 x40 na. .63 Para D Microsystem 70
15069 x100 N.A. 1.30 Para - D Oil, red ring.
15195 x90 na. 1.3 oil Fluorite D Microsystem 70
15743 x90 N.A. 1.37 Apo - D Oil, red ring.
165624 1/6 Argus - D Black and nickel - Tapered Pattern
17949 x50 N.A. 0.95 Fluo. - D Oil, phase gold ring.
181133 1/6 Argus - D All black - Tapered Pattern
181137 1/6 Argus - D All black - Tapered Pattern
181140 1/6 Argus - D All black - Tapered Pattern
181142 1/6 Argus - D All black - Tapered Pattern
181162 2/3 Argus - D All black - Tapered Pattern
18376 x90 N.A. 1.30 Fluo. - D Oil, red ring.
188612 1/6 Argus - D All black - Tapered Pattern
189167 1/6 Argus - D All Black - Tapered pattern
190759 2/3" Argus - D Black/Chrome.
193658 2/3 Argus - D All Black - Tapered pattern
197893 1/6 Para - D Black and Chrome - Tapered pattern
198575 1/6" N.A. 0.70 - - D Black/Chrome.
198875 2/3 Para - D Black and Chrome - Tapered pattern
200835 2/3 Para - D Black and Chrome - Tapered pattern
22043 1/6" N.A. 0.70 Para - D Brass. Tapered
22074 2/3" Para - D Brass.
22809 x100 N.A. 1.30 Para - D Oil, red ring.
24920 2/3 Para - D Brass and Chrome - Tapered Style
25367 1/6 Para - D All Bright Brass - Tapered Style
32327 2/3 Para - D Brass and Nickel
32976 1/6 Para - D All Bright Brass
33144 2/3 Para - D Brass and nickel
34632 2/3" Para - D Brass/Chrome.
35281 2/3 Para - D Brass and nickel
36636 2/3 Para 24th May 1946 D -
36751 1/6 Para 24th May 1946 D Black and Chrome - Tapered Style
38381 2/3 Para - D Black and Chrome - Tapered Pattern
38978 1/6 Para - D Black and Chrome - Tapered Pattern
39646 1/6 Para - D Black and Brass - Tapered Pattern
41081 1/6 Para - D Black and Chrome - Tapered Style
41119 1/6 Para - D Black and Chrome - Tapered Style
42019 2/3 Para - D Black and Chrome - Tapered Style
42121 1/6 Para - D Black and Chrome - Tapered Style
46235 1/6 Para - D Black and Chrome - Tapered Pattern
50545 1/6 Para - D Black and Chrome Tapered Style
52506 1/6 Para Metallurgy 22mm tube length - D Black and Chrome - Tapered Style - Short
5588 1/6" Para - D Brass/Chrome.
5594 1/6" Para - D Brass/Chrome.
7248 1/6" Para - D Brass/Chrome. Tapered
9108 1/6 Para - D Brass and Nickel
9635 1/6 Para - D Brass and Chrome
99590 x42 1/6" N.A. 0.70 Para - D Black/Chrome.
12495 x40 NA .65 Para Phase - E MicroSystem 70
12988 oil x100 NA 1.30 Para - E Service III
13290 oil x90 NA 1.30 Fluorite Phase - E MicroSystem 70
13764 oil x90 NA 1.30 Fluorite Phase - E MicroSystem 70
16456 oil x100 NA 1.30 Para - E MicroSystem 70
18333 oil x90 NA 1.30 Fluorite - E MicroSystem 70
19634 x40 NA .65 Para - E MicroSystem 70
20475 x40 Phase Para - E Microsystem 70
2416 x40 NA .65 Para - E Service III
3098 O.I. x100 Para 1.30 PHASE - E Service III
3661 x40 N.A. 0.65 Para - E Phase,green ring, short.
42572 40mm Para - E Black and Chrome Service II style
43293 16mm Para - E Black and Chrome - Service II style
44204 4mm Para - E Black and Chrome - Service II style
44520 40mm Para - E Purple and Chrome - Bactil 60
44986 16mm Para - E Purple and Chrome - Bactil 60
45036 4mm Para - E Purple and Chrome - Bactil 60
46287 40mm Para - E Black and Chrome Service II style
47324 2mm x100 Para - E Chrome Service II style
48812 x4 40mm N.A. 0.13 - 26.10.60 E Black/Chrome.
4969 x40 Para 0.65 - E Service III
499693 x10 NA .30 Para - E Short, all chrome with coloured ring
516318 x10 NA .30 Para - E Short, all chrome with coloured ring
51715 4mm Para - E Black and Chrome Service II style
51779 4mm Para - E Black and Chrome Service II style
52148 40mm Para - E Black and Chrome Service II style
525362 oil x100 1.28 Para - E All chrome with coloured ring [HC]
5288 x40 NA .65 Para - E Service III
5352 O.I. x100 NA 1.30 Para - E Service III
54867 16mm Para - E Black and Chrome Service II style
55302 16mm Para - E Black and Chrome Service II style
557452 x45 NA.0.65 Para - E All chrome with coloured ring [HC]
557908 Oil x100 Para 1.28 - E All chrome with coloured ring
56474 40mm Para - E Black and Chrome Service II style
571878 oil x100 NA 1.28 Para - E Short, all chrome with coloured ring
6135 x100 N.A. 1.30 Para - E Oil, red ring.
9073 x60 N.A. 0.85 Para - E Gold ring.
B10328 x40 4mm N.A. 0.70 -- E .
B10861 4mm Para - E Black and Chrome - Service II style
B11320 16mm Para - E Black and Chrome - Service II style
B11806 4mm Para - E Black and Chrome - Service II style
B1188 x50 4mm N.A. 0.70 Para - E Black/Chrome.
B12912 4mm Para Metall. - E Black and Chrome - Service II style
B13109 4mm Para 30th September 1952 E Black and Chrome - Service II style
B13190 x40 4mm N.A. 0.70 Para - E Black/Chrome.
B13832 16mm Para - E Black and Chrome - Service II style
B14008 2mm Para 30th September 1952 E Black and Chrome - Service II style
B14565 16mm Para 30th September 1952 E Black and Chrome - Service II style
B14621 x10 16mm N.A. 0.28 Para - E Black/Chrome.
B1619 x4 40mm N.A. 0.13 - - E .
B16755 4mm Para - E Black and Chrome - Service II style
B19768 4mm Para - E Black and Chrome - Service II style
B21559 4mm Para - E Black and Chrome - Service II style
B21587 4mm Para 2nd September 1954 E Black and Chrome - Service II style
B21643 16mm Para - E Black and Chrome - Service II style
B21814 2mm Para 2nd September 1954 E Black and Chrome - Service II style
B21860 16mm Para 2nd September 1954 E Black and Chrome - Service II style
B23132 4mm Para - E Black and Chrome - Service II style
B24260 40mm Para - E Black and Chrome - Service II style
B28728 x4 40mm N.A. 0.13 - - E .
B29258 x4 40mm N.A. 0.13 - - E .
B29774 50mm Para - E Black and Chrome Service II style
B32211 16mm Para - E Black and Chrome - Service II style
B32816 4mm Para - E Black and Chrome - Service II style
B33309 25mm Para - E Black and Chrome - Service II style
B33445 22mm Para - E Black and Chrome Service II style
B33862 2mm Para - E Chrome Service II style
B38447 x40 4mm N.A. 0.70 - - E .
B8330 16mm Para - E Black and Chrome - Service II style
C10292 4mm Para - E Chrome - Service II style
C10586 2mm Para - E Chrome - Service II style
C10588 2mm Para - E Chrome - Service II style
C10593 2mm Para - E Chrome - Service II style
C7854 4mm Para - E Chrome - Service II style
C8318 4mm N.A. 0.70 Para - E .
E3648 x50 3.6mm N.A. 0.95 - - E Chrome. Oil. Fluorite
E3762 x90 2mm N.A. 1.30 - - E Chrome. Oil. Fluorite
E3819 3.6mm Fluorite - E -
E3886 3.6mm Fluorite x50 Oil. Imm. NA .95 - E -
132360 x5 Stereo Objectives - - N Grey, bayonet fitting. These objectives usually bear the same number as the stand they were supplied on, so it may be assumed that a Stereo stand existed with this number and such a stand number has been entered into the preceding table.
134678 x5 Stereo Objectives - - N Grey, bayonet fitting. These objectives usually bear the same number as the stand they were supplied on, so it may be assumed that a Stereo stand existed with this number and such a stand number has been entered into the preceding table.
10830 1/12 Para 7th October 1946 U -
15498 2/3 Para 30th September 1930 U -
198886 2/3 Para 14th December 1948 U Black and Chrome - Tapered pattern
20695 1/12 Para 26th April 1949 U -
319763 x40 Para - U -
39613 X42 na .20 Para - U -
40320 2/3 x10 na .28 Para - U -
42187 16mm Para 29th May 1959 U -
42249 1/6 Para 12th February 1948 U -
45482 2mm Para - U -
46236 1/6 Para 14th December 1948 U Black and Chrome - Tapered Pattern
47522 1/6 Para 26th April 1949 U -
47855 x10 Para - U -
48217 2/3 Para 26th April 1949 U -
48444 2/3 Para 12th February 1948 U -
57763 1/6 Para 7th October 1946 U -
88657 x10 Para - U -
9317 1/12 oi Utility - U -
B10775 x40 Para - U -
B10984 16mm Para 13th November 1952 U -
B14281 2mm Para - U -
B14741 40mm Para 5th August 1953 U -
B17932 2mm Para 5th August 1953 U -
B18033 4mm Para 5th August 1953 U -
B18658 16mm Para 5th August 1953 U -
B29103 40mm Para 11th May 1956 U -
B29464 4mm Para 11th May 1956 U -
B29602 x100 oi Para - U -
B29744 2mm Para 11th May 1956 U -
B30308 16mm Para 11th May 1956 U -
B30851 2mm Para 10th August 1956 U -
B31029 4mm Para 10th August 1956 U -
B31412 16mm Para 10th August 1956 U -
B3391 16mm Para - U Associated with stand 103692 (1950)
B37878 2mm Para 29th May 1959 U -
B41314 4mm Para 29th May 1959 U -
B4236 4mm Para - U Associated with stand 103692 (1950)
B5663 2mm Para 25th July 1951 U -
B5665 2mm Para - U -
B5667 2mm Para - U -
B5675 2mm Para 25th July 1951 U -
B5800 2mm Para - U -
B7173 2/3 Para 7th October 1946 U -
B7400 4mm Para 25th July 1951 U -
B7408 4mm Para 25th July 1951 U -
B8613 2mm Para - U -
B9223 16mm Para 25th July 1951 U -
B9226 16mm Para 25th July 1951 U -
B9273 40mm Para 25th July 1951 U -
B9315 40mm Para 25th July 1951 U -
B9495 4mm Para 13th November 1952 U -
B9614 40mm Para 13th November 1952 U -