Suspect Grill

Not sure if this scan show's it but this grill is goofy.
Either someone tried to forge a grill.
Or something was on the stamp when the grill was applied.

Any thoughts?

It looks as if it is divided into four parts but that's just a guess. The photo is too small to see it clearly.

I guess my question is then, has anyone seen or read about grill skips or gaps in a grill?

stampcrow.....what you need to do is....
Take a #2 pencil.....
spread some lead on paper....brush finger over lead.....
gently transfer finger (with lead) to grill.
The grill will show better....
This grill is hard to see.

I will do that and re-scan it. Thanks

There are different different types of grills that include split and quads but not for sure if any were used on this era of stamp. I'm sure someone with a lot more knowledge than I will tell you what you have as there are many here that are knowledgeable. Got to love this place!

Newby Stamper....
Looking at the photo....(hard to see)...it appears that the grill is divided in quarters.
NOT NORMAL....but...
A SPLIT GRILL....is a grill which has moved from the center of the stamp and is divided
between the top/bottom or left/right.
A QUAD GRILL....is a grill that shows a portion in each of the 4 (quad)corners.

Kevin, That is how I understood "split" and "quad" grills to be. This is more like something blocked the "teeth" of the grill from making an impression.

It is not uncommon for a grill to be incompletely impressed. The most probable cause of the problem was the entrapment of air between the grill bed and the paper due to a slight "bubbling" of the paper. That is not a precise term for the phenomenon, but I hope it gets the idea across. Paper would do goofy things under the grill roller, particularly when more than one or two sheets were involved at one time. In this case the grill roller might cause a slight ripple in the paper which would resolve without creasing, but leave an incomplete impression. The problem was much worse in the early 1870s, but it is not at all rare in the earlier period. Things got so bad that pairs are known in which one stamp is grilled and the other is not.

Grilling just wasn't that precise, which is one of the reasons it died out.

Thanks. Hadn't considered "un-flat" sheet during grilling. Makes sense.
I wonder does this affect the value of the stamp? Would this be counted as a fault?

Thanks Kevin504 for the grilling. So how does a end roller grill look like on a stamp? Is it the grill or the position on the stamp ends( top, bottom or side)

Kevin504, is that something that can be/should be certified?

stampcrow....
stampcrow.....what you need to do is....
Take a #2 pencil.....
spread some lead on paper....brush finger over lead.....
gently transfer finger (with lead) to grill.
The grill will show better....
This grill is hard to see.

Then post photo with stamp on BLACK background.

opps sorry Kevin, I meant the stamp you linked to on ebay. Is that something that should be expertised?
I will do the pencil lead rub and try a scan of my stamp. Thanks.

YES...end roller grill.
I would love to see the grill on the 12c you posted with the lead test.
Will not harm it....