Fishplate profile set, standard, end and side, for BS 45R flat-bottomed rail, shallow fishplates, NPL No.55968, Crown Agents No.12/45R/2, made by Cooke, Troughton & Simms Ltd. of the Engineering Standards Committee, in original captioned fitted mahogany case, profile inscribed Tanganyika Railway, Requisition Nos.696/6, 682/6, Dorman Long & Co. Ltd. , 1930, on back, possibly a secondary inscription Fishplate profile made by Cooke, Troughton & Simms Ltd
Rail profile set, standard, end and side, for BS 55R flat-bottomed rail, NPL No.56092, Crown Agents No.12/55R/1, made by Cooke, Troughton & Simms Ltd. for the Engineering Standards Committee, in original fitted mahogany case. Rail profile, Cooke, Troughton & Simms Ltd
Rail profile, standard, end and side, for BS 60R flat-bottomed rail, made by Cooke, Troughton and Simms Ltd., for the Engineering Standards Committee. Rail profile, Cooke, Troughton & Simms Ltd
Fishplate profile, standard, end, for BS 80R flat-bottomed rail, angle fishplates, unnumbered Crown Agents series, by Cooke, Troughton & Simms Ltd., for the Engineeing Standards Committiee Fishplate profile made by Cooke, Troughton & Simms Ltd
Fishplate profile set, standard, end and side, with ledge gauge, for BS 55R flat-bottomed rail, angle fishplates, NPL No.56097, Crown Agents No.12/55R/2, made by Cooke, Troughton & Simms Ltd. for the Engineering Standards Committee, fishplate profiles inscribed Tanganyika Railway, Requisition No.834/1, Dorman Long & Co. Ltd., Middlesbrough, April 1930, in original fitted mahogany case Fishplate profile made by Cooke, Troughton & Simms Ltd
Rail profile set, standard, end and side, for BS 45R flat-bottomed rail, Crown Agents No. 12.45R.5, made by Cooke, Troughton & Simms Ltd., London & York, in original fitted mahogany case. Rail profile set, Cooke, Troughton & Simms Ltd
Two clip profiles, standard, ends and sides, outside and inside, for BS 45R flat-bottomed rail, modified type `F' clips, drawing Z3822, unnumbered Crown Agents series, profiles by Cooke, Troughton & Simms Ltd., London & York Two clip profiles
Precise levelling staff by Cooke, Troughton & Simms Ltd, York, England, as new condition, c. 1975 Levelling staff, British, 1971-1980 1971-1980
Vickers projection microscope by Cooke, Troughton & Sims Ltd, York, 1941, with an associated manual "Photomicrography with the Vickers Projection Microscope, 5th Edition, 1956". Vickers Projection Microscope 1941
45 degree prismatic astrolabe by Cooke, Troughton & Simms Ltd. of London & York. No.19921. Boxed, HO 2, with stool 45 degree prismatic astrolabe by Cooke 1941-1950
Cooke Reversible Transit Circle, manufactured by Cooke, Troughton & Simms Ltd, York c.1928 for the Royal Observatory, Greenwich. Used to measure positions of stars and planets at Greenwich (1933-post WWII), Herstmonceux (post WWII-1982) and Brorfelde Observatory, Denmark. Cooke Reversible Transit Circle 1925-1933
5" Tavistock theodolite no.VO.552 (geodetic) by Cooke, Throughton and Simms, in fitted box Theodolite
Rail profile, standard, end and side, for BS 60R flat-bottomed rail, made by Cooke, Troughton and Simms Ltd. for the Engineering Standards Committee. Rail profile, Cooke, Troughton & Simms Ltd
Fishplate profile set, standard, end and side, for BS 80 flat-bottomed rail, angle fishplates, NPL Bo.55985, Crown Agents No.12/80R/2, made by Cooke, Troughton & Simms Ltd. for the Engineering Standards Committee, in original fitted mahogany case Fishplate profile made by Cooke, Troughton & Simms Ltd
Fishplate profile set, standard, end and side, for BS 45R flat-bottomed rail, angle fishplates, Crown Agents No.12/45R/6, made by Cooke, Troughton & Simms Ltd., London & York, in original fitted mahogany case Fishplate profile made by Cooke, Troughton & Simms Ltd
Sleeper plate profile, standard, end, BS 12 S, Crown Agents No.10/3 (duplicate), made by Cooke, Troughton & Simms Ltd., Workington profile, 1934, in original fitted mahogany case Sleeper plate profile made by Cooke, Troughton & Simms Ltd 1934
Rail profile, Crown Agents standard, end and side, for BS 80R flat-bottomed rail, made by Cooke, Troughton & Simms Ltd. for the Engineering Standards Committee Crown agents standard rail profile
Prismatic astrolabe by Cooke, Troughton & Simms Ltd, York & London, England, 1928-1932 Prismatic astrolabe, British, 1928-1932 1928-1932
Ultra-violet microscope of the Beck-Barnard type with quartz optics and a fluorescent eyepiece, made by Cooke, Troughton & Simms Ltd., York, in 1946. Two units, microscope on separate base, carbon arc-lamp light source and other parts fitted on optical bench track. In use both would have been mounted on an optical table. Ultra-violet microscope of the Beck-Barnard type with quartz optics and a fluorescent eyepiece 1946
Vickers inverted projection microscopes with box of accessories, 8x,9x,10x and 12.6x eyepieces, on wooden cabinets, by Cooke, Troughton and Simms, English, 1935-1950 Vickers inverted projection microscopes with box of accessories 1935-1950