As I was attempting to organize some of my vintage "drum stuff" earlier today I noticed two Zildjian Hi-Hat cymbals that I purchased some time ago with a late 50s-early 60s Rogers Kit.
When I removed the cymbals from the Rogers Hi-Hat Stand they were mounted on I noticed that both had a thick metal washer around the circumference of the hole in the respective cymbals. I had never seen anything like this before and my only guess is that someone was thinking that this might be an effective way of preventing "key-holing".
Anyone know if this was a common practice back then or whether this might have actually been done at the Zildjian factory?
I've included a pic for your "viewing pleasure."
THANKS in advance for your help!D' Drummer