Zebra,
Pretty much nailed it!
All of the large format revenues
with serial numbers ($30 - $10,000) come in booklet panes of four. This holds true for the reds (documentary), greens (stock transfers) and greys (silver), as well as the Series 1898 (R179 - R181), Series of 1914/5 (R224 - R227), and 1917 (R246 - R250). This also includes the various Future Delivery, Stock Transfer, and Silver Tax overprint issues too.
The top stamp will always be an odd serial # and have an imperf ("straight edge") top. The bottom stamp will always be an even serial # and have an imperf bottom. There will always be one even serial number perf top and bottom, as well as one odd serial number perf top and bottom per booklet pane.
Here is where we see our major issues. These stamps are ALWAYS perf on the left side, and imperf on the right.
Our poor sod of a stamp has had its left side perfs cut off, and for some unexplained reason, had bogus perfs added to the right side. I would argue "reperf" is an incorrect term, as there could never have been any perfs there to begin with. This isn't a $5 Columbian with a straight edge we are trying to improve.
I can't find it now, but at one time I did spot one of these format stamps on
ebay perf'd on all 4 sides. Another poor example abused by shady miscreants.