Vintage Swartchild Swiss Chronograph Staff and Stem Assortment # 49973.   Everything looks good and usable.  #3 vial has 2 staffs.  The #8 vial is missing the stem.  Otherwise looks like a complete set.  Box, vials all in good shape.  A nice set.  Plus 2 Excelsior Park Cal. 42 staffs.  The original paper that came with it is a very faded , old, Ditto machine copy.  I made an enlarged copy (included) so that you could tell what was what.  Vial #1- Universal 281,  #2- Valjoux, Eterna-Leonidas,  #3-Landeron cal. 47-48-49-51-55,Gotham,  #4 -Valjoux 23,  #5-Valjoux -22,  #6- Venus 170,  #7- Venus 152-175, Montbrilliant,  #8- Minerva Cal. 13/20,  #9- Lemania CH-27,  #10- Landeron Cal. 39,  #11- Pierce Cal. 134,  #12- Universal 285.