1c 1851 Plate 1-Late Stamps

Here is one I have been looking at all day trying to plate.
It appears to be 38L1L except for the guide dot from the stamp above at top right. That does not match position 28L1L.

Split top line, single recut top and single recut bottom - no double transfer, relief A narrows the list to:
14L, 33L, 35L, 38L, 59L. 74L, 75L, 78L, 37R, 39R, 53R, 54R, 56R, 73R, 75R. Total 15.

jaxom, you can take 14L off the list right away, since 4L would not have a guide dot. I think you probably have 37R1L there -- can you see a dot in the O of POSTAGE?

Dudley,
You can see from the image that I narrowed it down to 8 choices.
The 37R1L was my second choice but could not see the plating dot.
The guide dot at the top right could be from 27R1L.
Here is an image of the "O" and the full top recut (top).
The other image is from the full sheet image of 37R1L (bottom).

I have two copies of 37R1L: one shows the dot, the other (in a strip 35-37R1L) does not.

Dudley,

Can you check your copies for this plate scratch in the lower right corner? I could not find the mark listed on any of the possible lot.

Here is another one that I think may be 27R1L.
Part of the guide dot is visible and helped narrow down the choices.
But 27R1L does not have any good plating marks other that the guide dot and recuts.
The plate bruise at center left may be the key on this one.
The second image is of 27R1L from the sheet showing a bruise in the same area.
It could be the bruise on my stamp.
The marks Neinken shows in the "O" of "ONE" are not clear but there are other similarities with the image on the sheet as shown in picture 3.

Negative.

I think I have identified the first stamp positively as 37R1L.
38L was eliminated by the lack of guide dot on 28L.
I check the others on the list just using the guide dot.
That left me with 37R and 39R. I tried an experiment with the images.
I pasted a portion of my copy on both stamps and only 37R matches.
Dudley was correct. The LR plate scratch must be an anomaly.

Here's a nice example of 10L1L, with layout dot and center line. This has been added to the Stamp Smarter Plating Database - Thanks, Don!

I agree with the 37R1L.

The (split) top recut matches very well, and the 27R guide dot at UR positionally also matches perfectly.

The horizontal scratch is a very faint marking on some. There are quite a few plating marks that are faint, and 'on-some' positions.

dudley - Nice 10L1L.

Always fun to get that elusive top dot on the centerline.

51-52L1L. Lots of recutting here (twice top once bottom on 51L, twice top twice bottom on 52L). Chase plated on reverse.

I've always thought those two positions make a very nice pair, for exactly the reason you state. 51L also has a very long recut at top.

Nice centering for the pair as well.

Here's an example of 80L1L with center line. Of special interest is a doubling of the center line opposite this position, as noted in the Cipolla One-Cent exhibit (p. 26) shown in photocopy at the USPCS website.