Could it be a British army acceptance mark showing the crossed pennons?
Like this:
http://www.nrvoutdoors.com/NEW%20SERVICE/BARREL%20CALIBER%20MARK%20AND%20CROSSED%20FLAGS%20EDITED.jpg
Type: Posts; User: Makros
Could it be a British army acceptance mark showing the crossed pennons?
Like this:
http://www.nrvoutdoors.com/NEW%20SERVICE/BARREL%20CALIBER%20MARK%20AND%20CROSSED%20FLAGS%20EDITED.jpg