Take a look at this Scott 165 arch stamp {and yes has a wide border on the left.}
Unitrade shows
Scott 165 has a perforation of
11 x 11.
This one is...
TOP – 11.25BOTTOM – 11
RIGHT – 11
LEFT – 11
Left stamp measurement taken at Perf.11 and Right stamp taken at perf.11.25

Just to show that the bottom perf is not 11.25 but it was measured at perf.11

Hope some one can verify if there are other Scott 165 stamps with the same odd perforation combinations...???
Robert
Good eye Peter...