I hope this works... I suck at these sorts of things. Well the horn above is a Large bore 239 Mt. Vernon C trumpet that was a preliminary to the CSO's set. It apparently might even have the same 25 leadpipe as Chicagos, although I dont know that for sure. The horn below is also a L-239 Mt. Vernon C, and is was made in 1957, so a little later than the other one. I'll post more pics later
