Germany Strange Perforation/Error

Found this stamp from Germany in a bag of stamps and was wondering about the strange perforation on the bottom. The bottom part of the stamp has been cut off to short and has a odd perforation different from the other three sides. Has anyone seen anything like this before? Is this an error or is this something someone did on purpose?

I think the bottom perfs could be a cutting or tearing tool used to separate stamps from each other.

Perhaps a machine made for coil stamps or for strips of ordinary stamps?

In this photo I have taken the bottom perfs and flipped them topsy turvy and placed a snippet of them next to the upper perfs.

You can see the cutting teeth were positioned exactly where the original perf holes would have been if the vertical alignment was correct.


Just a mistake made when separating the stamps apart perhaps?

It's probably from a coil strip. The stamp was issue in sheet and coil formats. I don't know about German machines, but in the US, the coil dispenser has a serrated edge to facilitate tearing. When the roll is off alignment, it will not tear along the perforations, and produce a stamp edge similar to the bottom stamp edge in your picture.

...it looks like my cousin's Willie cat licked that stamp!

I've heard this before from another collector from Germany.

I'd mount that in my album,
with text alongside.
Items like these give a certain appeal for me
and encourages reading and interest.
Could one reasonably assume the coil dispenser location was the same as the pmk?