Common Name: Aristocrat Series IV.
Model Number (baritone): S80.
Lowest Serial # Seen (alto/tenor/bari): 294xxx 330xxx 352xxx.
Highest Serial # Seen (alto/tenor/bari): 334xxx 351xxx 382xxx.
Bell Key Orentation: Left Side Left Side Right Side, Behind Bell.
Roller Color: Variable; generally yellow or tan.
Finishes: Lacquer, Yellow lacquer with nickel-plated keywork.
Engraving: "Buescher Aristocrat".
G# Key Stamped: Buescher.
Serial Number: 358039 . The Aristocrat is generally considered to be the "Classical Pro" horn from Buescher. This Horn shows a fair amount of wear. It has a small dent behind G# key, but does not seem to affect the playability of horn. I have endeavored to show the wear in the pics. Will need a minor tune-up to bring to spec. From my research, built around 1954-1955. Case is in rough shape, but still functional.