When you make a lot of diy keyboards you end up with a bunch of random symbols and duplicate keys and one keyboard will get all the odds and sods because keycaps are weirdly expensive. It’s not my photo but I’m fairly certain that is what is up. If you touch type for real they can have anything. I don’t know where I put it, but my keyboard has those really dished out caps with some selectively upside down to angle them the wrong way, and tab and shift etc is in the middle of the board. People that have tried to use my computer think I’m insane.