| MODEL | NO. | BORE (in.) | BELL (in.) | VALVE(S) | REMARKS | Image |
|---|---|---|---|---|---|---|
| Ambassador | A15 | .485/.500 | 7.5 | Produced: 1947 - 0 |
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| Ambassador | A20 | .495/.510 | 8.5 | F | Student Bass, Yellow Brass Bell, flat wrap |
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| Special | L15 | .485/.500 | 7.5 | Dual bore chrome-plated nickel-silver inner slide tubes may be fluted. |
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| Standard/ Self-Balancing/ | L8 | .510/.525 | 8 | F attachment available. Produced: 1930 - 0 Catalog: 1930 |
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| Std/ Self-Bal/Mil | LM7 | .495/.510 | 7 | In-slide for Standard | Standard, Self-Balancing, Military Produced: 1930 - 0 Catalog: 1930 |
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| Std/Self-Bal/Mil | LM7.5 | .495/.510 | 7.5 | In-slide for Standard | Produced: 1930 - 0 Catalog: 1930 |
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| Std/Self-Bal/Mil/Super | M7 | 7 | In-slide for Standard | Standard, Self-Balancing, Military, Super Produced: 1930 - 0 Catalog: 1930 |
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| Opera Fanfare | O115 | .547 | 8.5 | Symphonic bore instrument. Yellow brass bell. |
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| Opera | O15 | .554 | 8.5 | Symphonic bore instrument. Nickel-silver thin-gauge bell. |
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| Valve | O20 | .500 | 7.5 | |
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| Aida | O20 | Valve |
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| Marching | O21 | .500 | |
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| Opera | O23 | .554 | 8.5 | F | Symphonic bore instrument. Nickel-silver thin-gauge bell. |
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| Symphony | O25 | .554 | 8.5 | F | Red brass bell. |
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| George Roberts | P-22 | .565 | 9 | .575 f trad wrap Yellow Brass Bell |
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| Custom | P15 | .500 | 8 | |
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| Custom | P16 | .500 | 7.5 | |
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| Custom | P24G | .565 | 9 9.5 | F G, Gb | .585 Independent valves. Red Brass Bell |
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| Recording | R15 | .495/.510 | 7.5 | |
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| Recording | R20 | .495/.510 | 8.5 | F | Flat wrap. Red "Rey-o-loy" brass bell. |
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| Radio | R7 | .485/.500 | 7.5 | Compact | |
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| Radio | R7.5 | .510/.525 | 7.5 | Compact | |
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| Super | S15 | .485/.500 | 7.5 | Tone/Krantz ring-initially 1in wide, later 5/8ine. Early verisons had a lightweight Red Brass Bell, with the rest being nickel silver. Fluted slides. Produced: 1935 - 1979 |
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| Super | S20 | .553/.565 | 9 | F | Bass trombone with flat-wrap F attachment. Tuning in slide. Yellow Brass Bell |
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| George Roberts | S22 1st ver | .565 | 9 | F | Bass .585 F attachment flat wrap. Red Brass Bell, in slide tuning |
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| Super George Roberts Bass | S22 2nd ver | .565 | 9 | F | (Bell section tuning) trad. wrap, Red Brass Bell, F bore .585 |
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| Super | S23 | .553/.565 | 9/10 | F/E | Bass trombone with F attachment dependent E valve. 9 or 10 inch bell. Tuning in slide. Yellow Brass Bell |
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| Super | S24G | .565 | 9 | F G | F/G/Eb independent dual rotors, Red Brass Bell. Silver Plated |
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| Military | S6 | .485 | 6 | |
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| Military | S6.5 | .485 | 6.5 | Produced: 1930 - 0 Catalog: 1930 |
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| Super FW | SF15 | .485/.500 | 7 | |
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| Studio | T15 | .485/.500 | 7.5 | |
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| Superstar | V20 | .495/.510 | 8.5 | F | Silver plated |
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| Superstar | V25 | .565 | 10 | F E | Silver plated |