18 pr & 4.5 makers marks on casings

[Gspragge]

I have been asked if I can identify these Canadian manufactures ~
CC
CCCo
CCS

 

[Dandebur]

Hello,
I think the manufactures, you are asking for, are the same: Canadian Cartridge Company. (identified by TimG). You can find
CC ; CCC ; CCO and the most common CCS.
See my reply about this company in this thread.
http://www.bocn.co.uk/vbforum/threads/95468-18pdr-headstamp-questions
Regards
Dandebur.