I'm looking for some help with 2 different Zildjian badge stamps.

Trying to figure out what decade they are from.

I've checked out all of the stuff on line and I'm still not sure.

#2 Zildjian ride cymbal is 21", the badge is 1 1/4" tall about 2 1/2" off the edge of the cymbal. weight also 7.5 lbs.

This appears to be a newer cymbal ... 60's or 70's ??? Also a heavy ride.