If the picture you posted is the one, there’s definitely a gap at the back of the pin block. Whether or not it’s also ‘canted’, or leaning forward a bit isn’t clear.
Way back in the early 1900’s there were a few 12 strings that used 6 pins.
Clearly you’re obligated to loosen both to change 1 string, but otherwise it’s a simple system that works.
Howard
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