Original Gas Mask Spare Lenses Book There is a maker's mark

There is a maker's mark on the back

center rivet where the handle attaches to the lid

The material has some stretch to it

Originals were normally made from red brown Bakelite

There are stains on the cuff of the sleeve

Original Gas Mask Spare Lenses Book There is a maker's markNew old stock spare lenses for your gas mask. These are war time manufacture, dates vary between 1942, 43 and 44. Good to complete your gas mask can or replace your old cloudy broken lenses. Each packet contains one pair of lenses. There are a few different variations in the printing on the packets, see photos. Packaging shows wear. Some are more yellowed than others. Limited supply. Price is for one packet.