I would note that pre 1926 ish, I'm told that the
British
practice was to use the barrel serial number as the master serial number - and have observed several actions with cancelled original serial numbers "force matched" to the barrel serial number.
So from that observation, the
Canadian
practice of using replacement receivers was similar to an earlier British practice.
Bare Long Branch No4MkI* actions dated 1944 + 1945 were available from ord. stores with no serial numbers.
1954,55 & 56 dated Long Branch actions usually show out of year sequence or LB manufacturer serial numbers, demonstrating that they were ALL? Used simply as replacement receivers rather than for any production run.
Thanks for the replies
I guess then there is no way of knowing whether its a repaired savage or Longbranch.
Regards Chubbs