For that price it's a steal!!!
Yes, it was a steal! Back in the day, when the Deutsch Mark was king, militaria at flea markets was most reasonable, if not, like in this case, downright cheap. Thanks for your comment, Fallschirmjäger.
Love the mask, it has a lot of character!
All the best,
nice find! you can easily get an original filter for it, and its got the D stamp for being waterproofed