My guess as Meazzi based on the fact that I've seen hex M5 tension rods on Meazzi only - never anywhere more.A good enigma... :)Jon, let's wait what we can hear from our forum member Luca and furthermore I think it will be not bad to send your pics to Mauro Gatto for check.George.
First let me say i was wrong.The drum is not a Leedy at all.I did some checking around.I think Father-42 is right Meazzi made drum....Mikey