The Siegfried's Call Custom G Series features the same wonderful exterior custom design, inspired by Sansone mouthpieces, as well as a cup and rim shape that was averaged from multiple Laskey G cup interiors and rims. The result is an outstanding mouthpiece with clarity, response, and feel. 

The Shank is standard American taper or Morse 0

Rim: One piece mouthpieces uses an averaged traditional Laskey rim shape extrapolated from scans of multiple rims from their oldest to most recent production.

Available in four inner diameter sizes: 725 (17.25mm), 75 (17.5mm), 775 (17.75mm), and 80 (18.0mm)

Bore: US #14 - 4.623mm