The Conn Symphony 88HOSGX is similar to the Conn 88HO but with a Sterling Silver Bell finished in Silver Plate with a Gold Plated Inner Bell and Trim plus Deluxe Engraving.
Bell: 8-1/2 (216mm) Sterling Silver Bell
Inner Bell, Tuning slide, handslide fork and trim: Gold plated
Bore: .547 (13.89mm) large bore
Bore through open wrap F attachment: .562 (14.27mm)
Outer slide: Silver plated Rose Brass
Mouthpiece: Conn 5G
Case: 7552L Deluxe wood shell case