Watson Catalogue Microscopes and Accessories,Parts I & II, 36th Edition c.1939, with price list for 38th edition 1946 pp. 260, soft cover, contents clean and complete, cover creased with light soiling.Watson booklet, Microscopes for Students and Research 1936, pp.32, soft cover creases and light stains.Watson booklet, The Book of the Watson Microscope c.1935, pp.32Cooke Microscopes, Cooke, Troughton & Simms Ltd, c.1955 pp.174, cloth bound hardback, pencil annotations of prices in margins.Beck Microscopes Catalogue, c.1950, pp.116, cloth bound hardback. Charles
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