Yeah, trying to figure that out now - if you click through, it should take you to the image though.
It's not pretty, but I got it!
Select the image address by right clicking
Then click the little Mona Lisa to get the tags
[img][/img]
Then put that copied link in between them so you see
[img]https://i.imgur.com/qdlRckq.jpg[/img]
Anyway, no idea. The regular spacing is 57.15 (19.05 (1 unit) x 6).
Maybe it's from an older board with weirdly offset stabilizers? I wonder if it has anything to do with those stabilizer wires that have the bends in the middle.