Burnerd Old Type

  Set of Hard External Jaws for Burnerd Old Type Chucks. . 
  
  That's pre Pratt & Burnerd, Burnerd Chucks. Very Old & Obsolete.
  11" & 12"   3 Jaw Scroll Chucks - 
  Please double check with dimension in picture #2  
  Original Set with Matching Serial Numbers.
  Minimum use, if any. Absolutely Pristine.