My first M1917 rifle

[Mk VII]

Attachment 134236 stamp on the left side of the receiver is a BM with a crown over it

British commercial proof mark. Should on the bbl as well (often under the handguard)

[mmontag]

British commercial proof mark. Should on the bbl as well (often under the handguard)

Interesting, so this one actually came from the U.K. I don't see any import marks but perhaps I'm not looking hard enough.