If you're gonna do something, at least do it right!
The following is from
ebay lot
256081800895.
https://www.ebay.com/itm/256081800895
Can you see which side(s) have been reperforated?
Spoiler alert, ALL of the large sized reds (documentary),greens (stock transfer), and greys (silver tax) have a natural straight edge on the right edge, as they were printed in a pane of 4 with a receipt on the left side, and the stamp on the right side.
Here is an example of what one of the panes would look like, this one is an R725a. Look at the right edges of the stamps, naturally straight edged:

Somebody reperfed a stamp that was naturally straight edge on two edges to create this poor victim.
Shame, it was a $250 stamp!!!!
I have purchased from the seller previously and have let him know.