My gunsmith has a Savage 720 on consignment in his shop. Both the barrel and receiver have Ordnance Dept. stamps. This is not a trench gun, it has a full length barrel. I would guess it was used for AA gunery instruction.
I have no interest, financial or otherwise in the gun. I thought I would post it here in case anyone in the group collects matrial marked Savages. If you have any interest PM me and I'll give you the shop's contact info.