I've got an older Zildjian 15 inch cymbal

[JoeDrum22]

Could anybody provide any information about this Zildjian cymbal? This came from a family member who played back in the 50s and 60s. I want to eventually figure out how much this thing is worth.
Diameter, about 15 in. It has 7 rivets.
It's about medium weight.
I don't see any cracks. Needs cleaned up a bit.
Attached are images. It was hard to get a pic of the label, because there was glare when I kept trying to snap the photo.
Thank you!

[zenstat]

JoeDrum22,

Looks like a Type I Transitional Stamp but without the vertical hatching



from: http://black.net.nz/avedis/trans4.html#trans1

Some don't show the vertical hatching, and it meets the my other diagnostic criteria. Late 40s (1946-1949) according to Bill Hartrick.

Expected value $127 with half selling for between $79 and $150 n=17 based on my pricing research:

http://black.net.nz/avedis/avedis-prices.html#15

Cleaning it may reduce the value. The rivet hole pattern and rivets themselves look like they were added after the cymbal left the Zildjian factory. I don't have strong pricing evidence on whether or not rivets affect the price of a cymbal, but we're talking $10-$20 in expected price and that small an amount is hard to estimate accurately given all the other factors influencing prices. You should weigh the cymbal as this provides a bit more information. Reporting the weight in grams is customary, but ounces (or pounds and ounces) is fine. Back in the late 1940s that could have been a ride cymbal.