I'll bet the blade was re-pointed. I've done my share of repairs like this in various blades and it's easier than re-creating the diamond profile of an original. As for the rest of your info, I'll be of little help. If Old Smithy doesn't have it, it's hard to say. I just think it's a super nice example and wonder at all the time and travel it's been through. Finally it's come to a home...