Glad you like them ar!I don't own any 1st generation Amir's, but they definitley look more B20 than B8. Also, it seems some of the early ones were ink stamped differently. I found at least 3 versions of ink stamps on the first generation models. There's the stamp you have on yours (Photo 1 below), but also the china in Picture 2 appears to have both on top (Stamp 2). A 3rd stamp I found on a Google Image Search (but couldn't save as a jpg) shows just the type (ex. "Crash"), size and "Zildjian" on top of the cymbal (much like an 1980's A), but has the same stamp on the bottom as the china in photo 2 does on top. Interesting to say the least.I also attached two Amir flyers from VSD. The first (with your ink stamp) is from 1982, although there does not appear to be any model or size designation shown on the cymbals in the flyer. The second flyer is from 1984, which shows the more familiar 2nd generation ink stamp that continued until they were...............discontinued in the early 1990's.According to the 1982 flyer, the discs were not created at Zildjian, but were worked and made into a cymbal at Zildjian. Also, I like how they were "created and sealed in a dust free environment" at Zildjian's plant. Get that dust off my cymbal LOL! I would never expect dust to be present at a metal foundry or warehouse!Enjoy!
Thanks for info! Haven't seen those flyers before. Sure don't want dust on my cymbal, lol