I see....
lol
Anyway...I think my level of knowledge of these details is so inferior to the experts that I am only able to formulate my questions based on that ignorance. I apologize for that, but even with my level of ignorance, I can almost always SEE the difference between a real old K and almost every other cymbal I come across. I think it has the most to do with the hammering...but also there is something about the shape...the arc, if you will (pardon me) of the bell and the shoulder....something always stands out. Like in those pics a few posts back, the first one is an old K and it has a kind of "twist" in the metal where the bell starts. I've only really seen that trait in old Ks. Again, please pardon my ignorance.
I only own one, old K. It's got a badly cracked hole and I think it's only about 13-14 inches in size. I just keep it in my china cabinet on display. If I tap on it with a stick, it sounds pretty clangy. From what other players have told me....the really nice sounding old Ks that would be great for light jazz stuff, are almost impossible to find because there were so few GOOD ones....and now they are all owned by people who know exactly what they are.
However, I also remember several years ago, when that green nitro Gretsch kit was uncovered in some nice little old lady's attic and there was a complete set of old K's that still had the paper labels on them...almost pristine condition....Anyone remember those? I think the cymbals ended up being parted from the kit which I thought was sad....but I think they went for some HIGH numbers.