Original Austro-Hungarian enameled steel canteen M1915 (Feldflasche Muster 1915), marked "BGS Brünn".

It is producer Brüder Gottlieb u. Brauchbar Brünn.

Nice 107 years old original military item, canteen is without holes! 

Look at other my auctions, I have for sale other ww1 and ww2 military items from my collection.