I got one almost 40 years ago when i was 18, lost it a few years ago, it was a killer caller. I have brought a few since but all have sounded bad, I just got one in today from Ebay i paid $35 and it sounds great. I am posting some pics because the call i got today one side is black, I have never seen one like it.
(https://i.imgur.com/RIkgolN.jpg)
(http://i.imgur.com/d9cIzgR.jpg) (https://imgur.com/d9cIzgR)
Looks good, it will be a killer for sure.....