[USMCsean]

Isn't the "import mark" the fact that it says ENGLAND on the front of the receiver? Back in the mid/late 60s that was an import marking of sorts.

 

[USMCsean]

correct sean, its usually there or on the wrist. So yes the rifle is import marked.

It was more along the lines if a rhetorical questions, but glad you've seen this bit o' knowledge yourself.