Quote History Quoted:
I believe so. Also bear in mind when lend lease guns entered British service they were NOT proofed/ marked. This would occur when released from military service and the guns released on the civilian market.
Also consider the possibility that the gun had the stock replaced with a lend lease stock with the red band ( most of the red band 1917’s I’ve seen had the red band painted a little closer to the receiver)
View Quote
Depending on exactly what you mean, I would disagree with you.
The whole point to this "red band" thing is when the British received the rifles, they didn't want confusion as to the proper ammo for it, thus the marking.
Obviously that would have been when they "entered British service."
Now the export markings found on the barrels, that was done after all that.