I recently purchased an antique sword. Age is about 200 years. The sword seems to be in very good condition, except for one major problem. Before I get into that, PLEASE NOTE that I don’t want to discuss the sale itself, how it happened or who the seller is. I will state that the seller has thus far been very responsive. He has offered to refund my purchase in full. Alternatively, when I brought up the possibility of a repair, he offered to pay for that and discount the sword, if I wish to try that.
The problem is this - the sword has a crack in the blade. :cry: The crack is located approximately 18 inches from the cross / 14 inches from the tip. It is a through crack, i.e., through the entire thickness of the blade, and perpendicular to the length of the blade. The crack is about 13/16 inch long, thus running from the blade back, about 1/2 way to the blade edge, so this is a significant crack. I have attached some photos, below. (The crack is located next to the cork)
My questions for my fellow forumites are as follow:
1. Can such a crack be repaired? If so, how should such a repair be done? What are the risks and any special precautions that should be taken?
2. Even if the crack can be repaired, should such a repair be attempted? Why? Why not?
Why am I asking? Other than the crack, I really like the sword.


overall view


blade side (a)


blade side (b)