Ed Emmerling & Herb Curthoys were officers in SOSSI and added cachets to almost all of their personal mail. Those also related to an event are found in the Levy Catalog.
Ed Emmerling
06/30/57
Chicago, IL
Printed
Brown, blue, orange & yellow on Yellow
Herbert Curthoys
02/05/58
Buffalo, NY
Rubber stamped
Violet, blue & red
#10 envelope
Ed Emmerling
10/10/60
Chicago, IL
Printed
Brown & green
#7¾ envelope
Ed Emmerling
04/08/61
Chicago, IL
Printed
Violet & green
On buff #6¼ envelope
