I have a few 3c 1851's that I haven't posted here before. I have all of these id'ed as 10's or 10A's. Some have been plated, some not. Some were bought individually, some were in a large 3c 1851 lot that I bought a few years ago.
The first one I bought from Gold Medal Mail Sales, in the 1980's and thought it looked neat with the 'cut-to-shape' piece.
I got this strip of 3 at a Rumsey sale a few years ago. According to their description the 5-1/2mm single bar NYC town cancel was only used in August 1851 for 2 weeks. I also like the 'mis-registration' between the 'height' of the left pair of stamps.
Here is one cancelled with a NY US Express Mail cancel. I think it shows the cancel nicely.
Here is a 14L5e showing double transfer in the top and bottom labels. I got this in a large lot, probably because of the tiny facial scrape to the right of Washington's bust. Still, I like it!
I got this copy in a large lot. Should be easy to plate, but haven't attempted it yet.