The Otterstad Trombone Sconce created from a piece of trombone history. A 1905 H.N. White trombone "The King" trombones of this era the slides were hand worked by Henderson N. White himself. The switch is below the small wooden trombone. Yes the mouthpiece on the silver trombone is wood.
Vintage King Trombone with Case SN 169577 1935 to 1940 Benge 12C Mouthpiece