Looks like a trans-stamp to me, 1940's-1950's

Also a trans stamp, early 50's. There's very few of these don't have at least some warp factor to them. It comes almost as a given with the hand hammering.

Hi Iv'e got a 20inch thin that looks exactly like this but in better condition also 18" and 2 14" hats (the Joe Morello set up back then).....I bought them Brand New at Peats Music Store Montreal Quebec in 1966....the 20" set me back 67 dollars :-)

What's $67 inflated to today's dollar?

I paid $50 about 7 years ago... let somebody else break it in. ;)

Would it be a bad idea to heave the outer edge smoothed/trued by Saluda?

http://www.drumgearonline.com/services2.html

I'm just afraid one of the nicks/dents may start to crack at some point... smoothing the edge should prevent this, no?

Also, the center hole is a tad small to fit on a standard 8mm post with a sleeve. Would it be totally sacrilege to have the hole professionally enlarged to fix this... it will also help to lessen the keyholing too.

No, it won't

Yes, it would be sacrilege

Leave it as is, it's character, age, whatever you want to call it, it is what it is. Once you change something old, it's devalued and not as much as a collectible.

I guess I should invest in some 6mm stands for these vintage cymbals ;)

If I ever got the edge smoothed I wonder if anybody could really tell? I know y'all would say you could but...

Any idea what my cymbal is worth?

Guesstimate $225.00 to $275.00 on a good day