I didn't want to ask a question on the member's FS listing, but wanted to ask the learned hive here if anyone has seen a similar exterior welded on metal strap (reinforcement?) like in this pic. I've never seen anything like this before, but as the ad mentions, this is one of the earliest M10 production. Was this performed at the factory or sometime later? The other question is the apparent offset in the pin hole(s). Very curious.