Link to the sallet -
http://www.christies.com/lotfinder/a...2-7d935fd5d8ff
I wonder how and why the lower portion was attached to the top. You can clearly see the uneven line where the two meet, but I don't see any signs of welding. Perhaps this sallet was restored after being squashed.. Anyway, the rivets look new, the rest of the photo looks quite cohesive.