CraigF, nice looking gun. It is possible the gun was ordered with an extra set of barrels and for-end from the factory, in which case the second set of barrels and for-end would have a 2 stamp on both the for-end and the barrel's loop.
An extra set of barrels cost half as much as the gun, and most from the factory used the same for-end so there was no need for a stamp. Guns that were later sent back, had the stamp if there was a for-end supplied also.
The Damascus barrels cost more than the Stub Twist.
