Studio Bach Stradivarius 42TG Thayer Valve Open Wrap Trombone By Jeff Purtle, 09 October, 2020 Bach 42TG with Thayer Valve and Gold Brass Bell Bach 5G mouthpiece Slide aligned and set-up by John Upchurch at the Slide Dr in Georgia. Tags instruments More Studio Studio MG Leather Works Case and Pouch Studio Tom Crown Wah-Wah Mute, Piccolo Trumpet - Copper Studio Softone 187 Trumpet Mute