| Signature | 
Maker | 
Instruments | 
Comments | 
Location | 
References | 
| WATSON, W., AND SONS LTD. | 
England, fl.1900-27, MIM OIM | 
Microscope, # 66907 = Christie 12/8/76; Binocular Microscope, # 69798 = Christie 12/8/76; Telescope, 1918 and Microscopes (3) = Christie 5/26/76; Microscopes = D.(1972, Soth. 7/18/73; Telescope = D.(1976); Oxford Astrolabes, aluminum and paper = WHI, P.C., etc.  | 
this firm may have been started by William Watson 1; the 1927 catalogue was the 41st edition; the astrolabe was designed by Jenkin.  | 
313 High Holborn, London.  | 
Moskowitz 104; USNM; Bryden 16; Gunther 1; RSW.  | 
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