This Is The Reverse Of A 1861-68 3c Wash

This is the reverse of an 1861 to 1868 3 cent Washington stamp can anyone tell me what the grill is if it's a a grilled b grill c grill or z grill
I thank you very much.

Looks to me as a F Grill

F-grill was my first instinct also.

vliettim, what leads you to believe this might be either B-, C-, or Z-grill, instead of the much more common types?

I know nothing of grills... I just put it the only thing I know about them... That's the have let's attached, that's it

*Letters attached to them

You should be able to soak all that gunk off the back and get a better look after it dries.

vliettim,
Two things come to mind from your most recent replies:
1. It is always best to assume that one has the most common variety and work to eliminate that possibility, working toward the rarer types. In a thunderstorm, you will be hit by many, many common raindrops before the lightning ever strikes you.
2. If you have stamps on complete envelopes (covers), please leave them intact. The complete mail pieces are almost always worth more as "postal history" than a soaked-off stamp. And most stamps can by positively ID'd on their envelopes including the grilled ones.

Vliettim, Look at the grill like it's a spreadsheet.

Count the columns.
Common Grills
less than 13 columns it's an "F" grill
13 or 14 columns it's an "E" grill

Experimental grills

Exactly 15 columns it's a "D" grill

Wider even, 18 columns with the points coming up through the face of the stamp, it's a "C" grill

14 columns, and the points are horizontal (everything else, the points are vertical), it's a "Z" grill

If the points cover the stamp, it's an "A" grill

You won't just "find" an "A", "C" or "Z" grill.
You may never, even at a show, see a "B" grill.
You won't just "find" a 2 cent "D" grill.

It is possible to find 3 cent "D" grills-- I have found 3 on ebay.
I used to look at the back (when it was shown) of every #88 "E grill" that has a dull rose color. I found 3 that had 15 columns instead of 14.

Hope this is helpful.
Ray

Hey John,
Best analogy I've seen on SCF!! Very cool!

Ray