A 'hidden' stamp
 

What does this look like to you?

To me it looks like several men fighting – but is it?
It is from a tulwar blade, and as you can see, half way under one of the langets.

Hi Jens,
been studying the picture, even downloaded it....rotated it 90 degrees at a time......unfortunately I see fighting men....then again a rider and horse (reared up on its hind legs) ...etc. Its a bit like looking at the clouds and making shapes and images from them... :D
Could you try and post a few more pics.... it could make a difference. Have you 'cleaned out' the stamped area ? could provide a better image if you did, it certainly made a massive difference when I cleaned out the 'Katar' mark on my Tulwar.

Jens, it looks like a Rorschak ink blot test to me....I think I see my mother. :D