This is part of the collection. It measures 2&1/2" long.

photo2

This is an enlisted mans Army buckle dating after WW1 and before WW2, this period is known as Weimar Republic.

the army during this time named REICHSWEHR.

so it is a reichswehr buckle. the reichswehr exist until 1935 and was named wehrmacht.

this buckles were used in the first years of wehrmacht, too.

and a nice super-clean one - there are many beaters...