Internet Horology Club 185
Roller Jewel Information
This topic can be found at:
https://ihc185.infopop.cc/eve/forums/a/tpc/f/5146029761/m/796000186
February 08, 2004, 19:42
Wayne C. Anderson
Roller Jewel Information
An Elgin gauge.
February 08, 2004, 19:43
Wayne C. Anderson
And some information about its use.