Bore .504" - .531" bore = 12,8 - 13,5mm

Yellow brass bell: Ø 8 3/8" = 211mm

Gold brass leadpipe

Nickel silver outer slides

3 top-action valves

Stainless steel pistons

Original VINCENT BACH 12C mouthpiece and valve oil

Light weight case with rucksack assembly

Clear lacquer finish