Original Gas Mask Spare Lenses Book They are etched with various

They are etched with various numbers in the glass

There is a maker's mark on the back

center rivet where the handle attaches to the lid

This one is based on a civilian pattern and the leather work is done in a Wehrmacht style

using material cut from the inside area between the buttons

Original Gas Mask Spare Lenses Book They are etched with variousNew 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.