Very nice Bell Systems 22-page operation manual from 1968  - HOW TO OPERATE THE TELETYPEWRTER No. 33   TWX      (ON TELETYPEWRITER EXCHANGE SERVICE)  -  with detailed instructions and a few diagrams and photographs.  5 7/8" x 9" in absolutely excellent condition.  Document ID# - 999-300-105    Issue 2, April, 1968.  The photos tell the story.  Thanks for looking....enjoy!!