german ww2 dienstbrille.

TheGerman Dienstbrille(literally:service glasses) were used during World War II by Wehrmacht soldiers who needed glasses to see properly — similar to what we now know as standardmilitary prescription glasses.The Dienstbrille quickly acquired anicknameamong soldiers:'Panzergläser' or 'Hitlerbrille' – because of their characteristic round appearance that somewhat resembled Hitler's own glasses (meant ironically).