Folding opera glasses, French patent, in purple velvet case, unsigned, Europe, 1850-1950 Folding opera glasses, French patent, in velvet case 1850-1950
Theatre binoculars with plastic lenses made by the donor to patents No 416, 398. 1934. Brown Bakelite body made in Belgium by Neto. Rectangular objective lenses, convex and circular eyepiece lenses, concave. Arthur Kingston. C.1946. Theatre Binoculars with Plastic Lenses 1931-1941
Collapsing opera glasses, lazy tongs movement between lenses. Incorporating COIL lenses of Kingston patent. Quick Sight Binoculars
Pair of six draw collapsible, telescopic, opera glasses binoculars, unsigned, United Kingdom, 1800-1899 Pair of six draw collapsible telescopic opera glasses 1800-1899
Pair of expanding opera glasses in imitation leather case, marked par brevet d'invention et de perfection ement , French, 1890-1924. Pair of expanding opera glasses in imitation leather case 1890-1924
Pair of opera glasses, brass body covered with mother-of-pearl, and with leather case, supplied by Lennie Opticians, Edinburgh, French, probably made in Paris, 1885-1895. Engraved with the owner's details Mother-of-pearl opera glasses with leather case 1885-1895