oh, yes a comment about patina. ....To my knowledge none of these cymbals have been cleaned , either since they were new( 1960's?) or very near to that time.
All of these cymbals exhibit, some left over crust, that the lathe missed, from the tempering/annealing process as well as numerous little flecks of oxide or sulphide , where impurities lie , embedded in the metal. There are also lots of pocks of carbon or other detritous , revealed by the lathe and sections of minor discolouration. Had they been cleaned, a lot of this stuff would be gone.The colour of the metal is clearly that of oxidized bronze but they have been stored for years in an environment that excluded most dust and other airborne guck. These cymbals have patina, that occurs naturally over time as opposed to grime, oil, filth,sweat, earwax, snot , rye&coke,dust nicotine, or other airborne pollution that a considerable # of !!!don't clean your cymbals!! types would like to pass off as patina. These won't get cleaned but all of the above gets carefully removed from my cymbals. Anyone listening to them, would be thankfull---patina is o.k. but grime just dulls the sound.