First: You're asking this question in the wrong place. Vintage cymbals is the department you want. Tell 'em Bill sent you.

Second: You failed provide us a with one crucial piece of information....the size.

What Bill said. And I'd love to know the weight, as well as the diameter.

I've got a 620g 14" Trans stamp, and I can just barely see the more deeply impressed parts of the stamp on the other side. Nothing as clear as yours.

I have a very thin pair of trans stamps, you can see the stamp through the back and they are sharp at the edges, they are very washy as you would expect.

i think they need paired with a heavy bottom but thats just me ive experimented with different weights and come to find out the lighter top cymbal

with the heaver bottom adds more chink and does not wash out so much ....

I agree. I pair my Trans stamp 620g with a 1960s 1120g. Sound nice to me. I love the pair (and the playing) shown in this video. Something to aspire to with mine. If only I could play like this

[ame="http://www.youtube.com/watch?v=fcanABdfqEQ&feature=relmfu"]http://www.youtube.com/watch?v=fcanABdfqEQ&feature=relmfu[/ame]

I have a couple of cymbals whose stamps are visible through the back. The area around the stamp is also impressed, looking like a giant (2" or so) hammer mark. Is that the case with yours?

But, yeah, it's pretty common with the Trans Stamps and the stamp right before, but not so much with the even earlier stamps or the 50s stamps and after...

I have a pair of Trans-Stamps that have similar characteristics. They are 15" and weigh 885 & 935g.

You can see the stamp from the bottom (look at 7 o'clock)

[IMG]http://i650.photobucket.com/albums/uu224/FTG3/P1010204.jpg[/IMG]

I have a very thin 12" trans stamp where you can see some stamp extrusions on the other side.of the cymbal.