All it had in the "stamp" was:
Typical "Turkish" symbols
Typical curved sword
ZILCO
TRADE MARK
No mention of where it was made...
Personally, I'm OK with what I got out of it. This "lot" was given to me... I got $200 out of the BD (1920s Ludwig) with a LOT of issues that I sold "as is." I got almost $500 out of the Ludwig 10-lug snare drum (also from the 1920s) that basically all I did was clean it up. And even after that it was in no-where near mint condition.
And like I said, this lot was just given to me by someone who was simply cleaning out their garage. They refused even a share of the sales...
I've still got an old woodblock that came with it all, too, but there are no markings of any kind on it...