How do you measure segment heights
 Catalogue Number: 1860 How do you measure segment heights Category: Memorabilia and ephemera Sub-Category: Advertising, trade and products Association: Associated Manufacturers of Solid Bifocals Year Of Publication/Manufacture: undated Time Period: 1900 to 1939 Publisher/Manufacturer: Associated Manufacturers of Solid Bifocals Description Of Item: Three fold leaflet, 21.9 cm W 17.6 cm H when open, black and white printing with photographic illustrations. It is designed to accompany the segmeter, a rule for measuring segment height. The rule is not included in this case but there is a photocopy of it. It is inscribed in handwriting 'Given for keeps by Mr McCombie with rule'. Historical Significance: The manufacturers of solid (one-piece) bifocals that are members of the Associated Manufacturers of Solid Bifocals are listed as: Bausch and Lomb, British AO Coy Ltd, J and R Fleming, W Heal, W A Quinn Ltd, Stigmat Ltd, United Kingdom Optical Coy Ltd, Uni-Luxe Optical Co Ltd and M Wiseman and Co Ltd. Condition: Good Location: Archive office. Pamphlet and ephemera filing cabinet. Drawer 4 |