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it's one of these streamlined for them modern times...
the wall had to be opened up so that the steampunk tubing could be connected from the shop to the kitchen so that the missus can call dinner time.
yeah, i also think it's to hang the incra setup by the mft adapter. the photo may exaggerate the angle but if you store the thing with fence up, it should just hang there without having to fasten it from the other side. the knobs that fasten it to the mft just store on the side friction fit.