US Scott 1402 - unlisted variety?

According to the Philatelic Foundation, unpunched perforations are usually not addressed on their certificates. The missing perforation hole is due to a broken or missing perforator pin.

Thanks all - appreciate the feedback - so is this considered an oddity? It is consistent as evidenced in the photos.

You may address this, in whatever you deem appropriate,
An "Oddity" is a fair assessment

or, EFO if you will, (Error, Freak, or Oddity)

Should you, then research the machine that carried out the said separation method,
(the perforations) how, when on what machine,
Then accumulate similar copies of that issue with identical damage,
Then you become a "Philatelist" in the true sense.

The British, with the millions of collectors, over time, the study, investigations,
sourcing material for discrete detection of happenstance,  have arrived
at their "Broken Perforation Pins"  and found (quite obviously in my opinion)  the damage
appearing over differing Postage stamp Issues, which would suggest, arguments over the
assumption, that broken pins were repaired after a few days.  This would suggest otherwise.

Every stamp tells a story, it's just which rabbit hole into which you want to dive.

Some of these perforating machines, were on sold,  and end up perforating the Bible stamps, well known to children in the 1950's at "Sunday School"

Great Britain broken pins separating stamp issues at a constant position, over differing value stamp sheets





Engineer, during manufacture of a Perforation die, installing High Tensile, steel pins