Five pairs of folding sun glasses for Homesun 100 ultra violet sun lamp, 1947 Five pairs of folding sun glasses, for Homesun 100 ultra violet sun lamp 1947
Three Pairs Safety Glasses to "BS 2092.1", with red filter added to left eye-piece and blue filter to right eye-piece, as used with Williamson-Ross Multiplex Three-Projector Assembly Three Pairs Safety Glasses to "BS 2092.1" 1963
Folding Glasses (c.1760-70) with a silver bridge, in shaped fishskin case Folding Glasses (c.1760-70) with a silver bridge, in shaped fishskin case 1760-1770