mouthpiece in excellent condition - slight signs of wear on the part which enters the lead pipe. Selling new for £64.50.

Bore 4.2 mm

Rim 4.00 mm

Outer diam 26 mm

Internal diameter of cup 18 mm

Middle depth cup 

Silver Plated 

The M-Series is characterised by a bright tone with a light tone, which is achieved by a flatter, rounder shell