| Abbreviations used on the list | |
|---|---|
| P/A | "Pan American" model line. |
| H.P. | high pitch (a' = 462.5 hz., or thereabouts). |
| L. P. | low pitch (a' = 440 hz.). |
| H & L. P. | the horn had accessory slides for both pitch standards |
| "stencil" or "stencil line" | a horn made by Conn for another manufacturer or marketer (such as Sears Roebuck, or a specific music dealer), whose own name and logo would be placed on the horn. |
| T. S. | tuning slide |
| "with mechanism" or "without mechanism" | certain models of Conn cornets, particularly the Victor (New Wonder) 80A, and other models missing from the cornet list, had a sliding-rod mechanism for the quick-change to A. When the main tuning slide was pulled out to A, these rods automatically caused the first, second, and third valve slides also to come out the required distance to bring all notes into the key of A. When the main tuning slide was pulled back to B-flat, the valve slides automatically closed up, also. A very neat gizmo! |
| Rot. Val. | tuning slide or bell tube has a rotary valve (on trumpets and cornets, it was used to change between B-flat and A). |
| T/A | on alto horns, "top-action" valves |
| F/A | on alto horns, "front-action" (also known as side-action) valves. |
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