Hello Forum Brothers (and sisters). I have obtained a beautiful 1955-57 era Slingerland Radio King WMP from a studio in LA. I found on Craigslist and bought sight unseen after a few better pictures and emails. It was missing the cymbal arms which was to be expected. I bought 2 on ebay from different sellers. As I'm not a vintage collector, I didn't realize that 50's Slingerland L-arms were smaller OD than 60's L-arms. Would anyone out there like to trade a beautiful 60's era telescoping L-arm for a beautiful 50's telescoping L-arm? Mine is complete, mostly original(wing nut on top is new) and works great. I can email photos. Thanks Dana