I have a double edge blade that is 9 ½” long and has some silver plate on it. The bayonet is 13 ¼” long from end to end. It has OEWG on one side of the blade and a T with a crown on the other. The crossguard has a muzzle ring (½” ID) and a tapered quillon on the opposite end, with two metal rivets holding it onto the blade and the numbers 547 also stamped in it. The hilt has wood grips with metal rivets and the steel pommel has a T with a crown on it also. The odd thing is the mortise in the end of the pommel is opposite of the muzzle ring? I have searched the internet and still don’t know the gun it fits, year made, or if it is Dutch?