Olds trombones Standard (TIS) Large Bore (c.1917) Standard (TIS) Bass (c.1920) Standard (TIS) S/SM Bore (early 1920's) Standard (TIS) Symphony (late 1920's) Self-Balancing LM-7 (early 1930's) Military LM-7 (early 1930's) Self-Balancing LLM-7½ with f-attachment (mid-1930's) Self-Balancing LM-8 (mid-1930's) Radio City LM-7 (mid-1930's) Radio R-7 (mid-1930's) Super 7½ (mid-1930's, pre-tone ring) Super LM-7½ (late 1930's - wide tone ring) Super LM-7½ (late 1930's - narrow tone ring) engraved "R. B. Olds" Super L-9 w/f-attachment (early 1940's) Standard (post-WWII non-TIS version - mid-1940's) Standard Bb-F-E Bass Trombone (c. 1947) Bb-F-E Bass Trombone (c. 1949) R-20 Recording A-20/R-20 hybrid Super S-20 Opera O-15 Super S-24G Custom P-15 Custom P-24G (three of 'em) Custom P-16
Other trombones Williams TIS "pre-9"(late 30's?) Conn 4H King 1485 Symphony Silvertone (c.1947) Strickler