WW2 German Rubberized Cardboard Transport Box 1945 Dated

Unique ww2 german marked rubberized canvas/cardboard box with canvas strap, light weight, possibly for a chemical suit or a uniform. Front of box is marked with waffenamt and “bdq.45”, and a discolored square spot beneath which possibly had a sticker or name tag on it in the past. There was a fastening strap on the front of the box (side with the carry strap) at one point which broke off and is  lost to time. Not often we come across anything  1945 dated from the Third Reich, and we havent seen anything exactly like this before.