I have a Winchester Garand, 2.4 m series s/n. It has a stock with a WRA GHD cartouche, which is visible but not very deeply struck. To the right of it is the crossed cannons , but they are struck upside down! Did this happen, would it still be real, or do you think this is the work of a humper? The stock is a dark walnut color (not lighter walnut).