.32 short colt

Continuing the discussion from About the Questions or Comments about the Forum or the IAA category:

I have .32 short colt C.I.L Canuck by the code seen to be made in the mid 70’s.
Do anyone have some information to offer about this cartridge?
The original price was $5 back in the 70’s.
I do understand that Colt made Colt positve revolver.
Any help would be nice.