K. same size of Zildjian so Old Stamp IIa (1945-1949)

Thanks so much. That's what I thought too, but I just had to confirm it. Now I just have to find a use for it. I got it to use as a Top Hi Hat with a 1012 gram Avedis, but they're not really a match made in heaven. The K is almost have the weight of the Avedis. It's still a sweet cymbal. I'm glad to have it.

so bent is hard as a hi hat, you can use it as a battle cymbal , or trashy fx ...

That's not an Old Stamp IIa. It is from the K Zildjian Constantinople era. I've annotated the identifying attributes. There are some other subtle differences from the Old Stamp IIa, but the two I've shown are enough to identify it.

There isn't a decent guide to these in print or online which goes through all the unique identifying features so I don't really blame people for making mistakes in identification.

Further discussion of this particular stamp is here: http://www.vintagedrumforum.com/showthread.php?t=62069

you're right for the "Trade Mark", I had not gone back in time to the IIa Stamp because I had excluded the "& Cie" , even if see bad it seems more like an "O" (& CO) than an "I" (& CIE), anyway you're right, excellent cymbal very light to be Costantinople!

If you follow the link I gave you will also see that the whole "& Cie" vs "& Co" ending on the company name does not mean what people think it means. This K Constantinople Stamp 4 is a "& Co" stamp from the Constantinople era. The idea that everything was "& Cie" until a switch to "& Co" with the Old Stamp IIa is typical of the kind of oversimplification which creeps in when there isn't proper documentation defining the different types.

Yes 600g is very light for a Turkish K Constantinople. Many of them were more robust marching band cymbals. Others I've got weights for are (in grams)

900, 1211, 1276, 1325, 1350, 1400, 1400, 1504

No wonder this one has a serious problem with warping.

Thanks Zenstats and Steff. It sounds like the past. That's for sure. Very Baby Dodds or something like that. It's exactly 15" in diameter and not some oddball size which is nice, but seriously light, not much stick click. Excellent trashy crash sounds. I've an 11" Constantinople too which is also paper thin. Fantastic splash cymbal.