Another delightful portrait of Doreen in celluloid glasses from the 1930's. The lenses are -10.50 and as was the custom in those days, made biconcave to reduce the thickness at the edges. Biconcave lenses are often found in antique trial lenses. I was lucky to come across a cheap trial lens set at the "Waterlooplein" flea market in Amsterdam during the 1980's. This extensive trial lens set came handy as it enabled me to measure the Rx of all the glasses in my collection.
Geen opmerkingen:
Een reactie posten