I picked up a Gillette single ring at a flea market and am curious about it not having the diamond logo or gillette name stamped on the underside of the comb.
It's canadian based on the "can. pat. mar 7/05" stamp on the barrel and it has a serial of C23566 on the knob tube.
I know the canadian serial's aren't equivalent to the US ones on the date reference sheet, I'm just curious if the lack of diamond logo and gillette name help narrow down the date range at all ?
Is there a known date when different changes were made to logo's and such ?
It's canadian based on the "can. pat. mar 7/05" stamp on the barrel and it has a serial of C23566 on the knob tube.
I know the canadian serial's aren't equivalent to the US ones on the date reference sheet, I'm just curious if the lack of diamond logo and gillette name help narrow down the date range at all ?
Is there a known date when different changes were made to logo's and such ?
