I'm trying to get info on the best horn I've ever owned, my current Silvertone tenor. It has a great sound, great intonation and NEVER needs work. I've owned a lot of horns including Selmer Paris and this is my favorite. OK, there, I said it. I'm trying to figure out when it was made and which Buescher it is most like. Obviously, it doesn't have Nortons or snap-ins. I have read that the stencils are based on true tones but, when looking at pictures on Saxpics' site, mine seems more like an Aristocrat. First off, it has the large "wrap around" F# trill key above the thumb rest. Did this first appear in the 1940's with the Big B's? Does the presence of this feature automatically mean Aristocrat body tube or not? The RH palm key spatulas look like the True-tones, not like the Aristocrats. The LH palm keys look like an Aristocrat. It has the wire key guards just like the Series I Aristocrats [left side bell keys of course]. What other features should I look for ? Any other info greatly appreciated.Thanks.