Those photos are so bad that it might be an add on MC. Hard to tell but it looks like a straight line about where you would expect to see such a repair. Anyways that is a rough looking C grade to my eyes. Unless it sells for less than I expect it would be a real money pit to make it right. Could use new stock, for end and barrels rust blued. I do not mind the lack of case color but why carry a ugly gun? Just because it is a early Fox?