certain positions are misaligned on the 400u 3sen rose plate. so relative to perforation, they are askew, or offset right.
as this plate derived from the 100u old koban 3sen plate, similar anomolies are likely. further, as the M4 imitation frames derived from same plate - even they should exhibit this askewed nature.
like history, errors repeat ... in photography, parallex shows rectangles as rhomboids - if the lense is not orthogonally centred ... horizon scales are important. today, so many stamps at auction are shot at angles that produce poor images.
