Old 15 inch K

[kona1984]

I have a 15 inch K Zildjian that came in a box of hardware with some 1954 Gretsch drums I picked up a few years ago.
My guess it is early to mid-50s? I can't confirm it actually belonged to the 54 drums though.
925g weighed on a digital food scale.
Thoughts?

 

[kdgrissom]

Old Stamp IIb (1949-1950)??

 

[JDA]

very valuable to old K players 84.