1867 3c Grill Mystery

Anyone have any thoughts on this grill? It doesn't look like a standard grill but it also doesn't look fake. Very unusual. Points are down and run vertically.

Multiple grill
More info (towards bottom of page)
http://stampsmarter.com/learning/ID...8Grills.html
Don

Wouldn't you expect to see a gap, a spacing change, and angle change or something, if it was a multiple grill? The points seem to be in perfectly straight and even lines across. I suppose your suggestion is the most likely, but I'm still suspicious.

Edit: After thinking about it, I guess it's the only real possibility. I've stared at it too long. Calling it a double grill and moving on. Thanks.

thanks for showing this very interesting stamp, interesting grill and cancel also. would be good to see a photo with oblique light oft the grill, perhaps. I would also expect seeing a double grill more separate or overlaying which is not the case here.

Looks too symmetrical for multiple grills to me, but I'm more often wrong than right.

Here is as good as I could get with oblique light.

I hadn't noticed the cancel focusing on the grill. It is interesting. A negative 6 leaf clover.

I concur with stallzer, looks too symmetrical.

I meant the stamp on the desk and then oblique light, but the photo directly from over the stamp.
when I look a bit longer at your first scan, I think I see the overlaying in the middle 5 or 6 vertical rows.

for me (not an expert) the B grill should be more obvious, and the C grill has sometimes some more grill points, but more weak than in your example, so if it was my stamp I would now indeed assume a double grill, but a very nice stamp which not many collections show.

It's points down, so B and C are ruled out. It is certainly unusual. I was going to pass it by thinking it a not-very-nice 94. Glad I checked.

OK, this got more interesting. There are some references to a type of double grill known as the "miracle grill" where the two line up perfectly to form one big rectangle. Here's an article about it in the Chronicle:

https://chronicle.uspcs.org/PDF/Chr...le_94/94.pdf

Very unusual item. You've also got a small amount of the next stamp on the right edge. Although may not be worth it, I'd consider sending that one to the PF to get a cert...

Here is a link to the 2 page "Miracle' double grill article, rather than all 75 pages of Volume 29.

http://chronicle.uspcs.org/pdf/Chro..._94/8231.pdf