Thanks Gary. I hoped what little I've got might give a ballpark idea. But no guarantees of course: you get what you get on the day when you sell them. Prices are really quite variable when you get to the level of individual pieces. I just noticed that if the larger diameter one is 18.5" then it is more like a notional 19". They did make 19" cymbals but they aren't as common. Not as in big price premium rare, but just not so many of them out there. I've got one 19" New stamp recorded out of maybe 230 sales (all diameters). So no price info, and using the 18" info is maybe a bit low. You could factor the 20" OS data into your thinking as well:[img]http://black.net.nz/cym2015/20-OS-K-2.png[/img]but a notional 19" would still sit below the low end of the 20" price range. For reading this table, -3 under bids means the auction was stopped and I've recorded the asking price (or current bid when it was pulled). And "munted" as in "hole munted" is a local slang term meaning "damaged". We refer to Christchurch after the Earthquake as "mega munted" which "severely damaged". NOS in condition is New Old Stock. I've got a whole page of codes and meanings...Those old Ks aren't usually exact inch sizes (usually a bit undersized) so one has to make do. Even modern cymbals made in Turkey seem to continue that tradition of being a bit undersized. Usually people just refer them at the "notional" size and that's how I record them in my database as well.
I have two "20"" new stsmps. One is 19.5 inches, the other is very close to 20" but just a fraction undersized. I guess that's a factor of the nominal inch versus mm designation as well as the vagaries of manufacturing by hand.