Rim shape is described for each individual model. Model numbers progress numerically from model #1 with the largest cup diameter, to model #20C with the smallest cup diameter.
Cup depths are notated with letters. "A" cups are the deepest; standard cups have no letter designation; progressively shallower cups are marked B through F.
"A" Models have very deep cups, #24 backbores, and emit a large, dark sound.
Models with no letter designation have deep cups, #10 backbores, and produce a rich, full, clear tone.
"B" Models have medium deep cups, #7 backbores, and have a full, Teutonic tone with great volume.
"C" Models have medium cups, #10 backbores, and are preferred by many players that alternate between Bb, C and D trumpet.
"D" Models have medium-shallow cups, #76 backbores, and produce a sparkling, brilliant tone, especially in the high register. Artists who continually play in the extreme high register use them to advantage.
"E" Models have shallow cups, #117 backbores, and are designed for use on soprano and piccolo trumpets. Also preferred by extreme high register players.
"F" Models have extra-shallow cups, #76 backbores, and are also preferred by extreme high register players.
"V" Models have V style cups. "V" designates a very deep cup, #20 throat, and #25 backbore; "MV" designates a medium deep cup, #25 throat, and #25 backbore; "SV" designates a shallow cup, #25 throat, and #25 backbore.
"W" Models have a wide, cushion rim for soft, thick lips.
Model No. - Rim Shape
Description - 1 - Medium thin
Extra-large cup for players with a robust embouchure. Produces a great volume of tone. - 1X - Medium wide
The pre-1970 (old style) No. 1, with slightly smaller cup and wider rim than the present model. - 1B - Medium wide
Large cup for players with a robust embouchure. Produces a warm tone with great volume. - 1C - Medium wide
Large diameter, medium cup ? good for all-around use. - 1CW - Slightly wider, gradually lowered to outside
Same as No. 1C with wider cushion rim. - 1D - Medium wide
Medium shallow cup facilitates high register. Brilliant sound. - 1E - Medium wide
Facilitates high register. Excellent mouthpiece for soprano or piccolo trumpet. - 1¼C - Medium wide
Large cup for powerful trumpeters. Compact tone of great carrying power. - 1½B - Medium wide, not too sharp
Produces a scintillating, warm tone of large volume. For players with a well-trained embouchure. Comfortable rim contour. - 1½C - Medium wide, not too sharp
Large diameter, medium cup ? good for all-around use. - 2 - Medium wide, lowered toward the outside
Large cup; powerful Teutonic quality of tone. For players with a good embouchure. - 2C - Medium wide, lowered toward the outside
Large cup; powerful, brilliant tone. For players with a good embouchure. - 2½C - Medium wide, lowered toward the outside
Large cup; brilliant, heroic, crisp C trumpet tone. For players with strong, muscular lips. - 2¾C - Medium wide, lowered toward the outside. Slightly more narrow than the No. 2½C
Large cup; bright, lively C trumpet tone. For players with a normal embouchure. - 3 - Medium wide
Fairly large cup with full, rich tone. - 3B - Medium wide
A fairly large cup. The tone is warm and full. - 3C - Medium wide
Fairly large cup, good for all-around use. - 3CW - Slightly wider, lowered to outside
Same as No. 3C with wider cushion style rim. - 3D - Medium wide
Fairly large, medium shallow cup produces a more brilliant tone. Facilitates high register. - 3E - Medium wide
Preferred by players who want a large mouthpiece but with a shallow cup. Facilitates high register. - 3F - Medium wide
Same as above but with extra shallow cup. Produces sparkling tone in the extreme high register.