This is a pristine condition vintage Otto Link “Slant Sig” mouthpiece for the alto sax. This piece is stamped a 4 and is all original, measures about .060”. This is a classic Florida vintage Slant, and is in amazing shape for its age. The white stamping is pristine with no fading. There are just a couple ligature marks but no real wear of note. The tip and rails are original and in perfect condition. This is an incredible piece that looks about as nice as it did the day it left the factory back in the 60’s.