Over the years, I've noticed a shield, or house shaped indentation, on the breach area of guns form the Near, and Middle East. Even as far as India. The indentation is usually about 3/8" tall, 1/4" wide, and quite deep. Sometimes there are two, or more. Were these once filled with a gold "amulet", or "talisman" that has since been robbed? There never seems to be any design inside. Just curious.
