A fair enough question. Even more so considering Birch seems to think these supposedly sideways numbers should be read upright and completely rearranges them to be read as such:
Why if this is to be read as '21' is the '|' sign (reading sideways, top-down) in the middle?
Edited 1 time(s). Last edit at 13-Feb-18 21:59 by Scott Creighton.