I haven't 'yet' identified an experimental orange brown 3 cent 1851-57, in my collection.
They're only from, as far as I know, plate 1 late. And only from the first couple months of that plates use
Plate 1L has many varieties of recuts, shifted transfers, engravers slips etc. This state of plate one was in use for more than three years. That means...lots of material!
Another plus is the stampsmarter.com site plating initiative has nearly a complete set of plate 1L images. It makes for an interesting treasure hunt.
The stamp pictured I liked the color and the quality of the image. I've plated it as 6R1L.
Hopefully, even with my poor images, you can see...the guide dot upper right. The recut line in the upper left triangle. Also, the gouging at the top of the upper right diamond block and the label.
I believe these are enough to identify the position of this stamp. I always say, "beware of my conclusions, for I am no expert."
