France 1853-60 Napoleon 20c

I have obtained this pair of French stamps from the years 1853-60, one of them I identify as SC#15b, milky blue (die I) (on the left in the photo), but I have doubts about the originality of the other (on the right in the photo), especially because the decorations on the side columns are incomplete and yet the stamp appears to have a strong impression, if it were original I think it would be SC#15 Bllue bluish (die I). What is your opinion?

Interesting. Grossly over-inked or a postal forgery?

After much comparison, I see that the Over-print, in addition to the decoration of the side columns, is very evident in the shadow of the eye, the hair, on the neck at the line of contact with the hair, the mustache and on the apple neck. ..no detail of bad design indicates to me that it could be forgie, the volumes, the shapes, distances, typography...if it were forgie it would really be a work excellently transferred from the original...

Question to the experts. Is the brown markings on the bottom of the first example rust? If so is it good idea to retain in the collection or infectious should it be removed as soon as posible for discard?

I found both together in a small envelope inside the "everything at 10 cents" box. They have been together like this for decades, and have not infected each other...anyway, maybe it could be dangerous for other stamps, as soon as I can I will do it. a cleaning and I will leave it healthy...

Not an expert, but my money on over-inking. First of all, the stamp is very cheap for some one to go to the length of forging it. Second, most important, every shape, every angle, every position looks correct. Just to much ink imho.

it's a worn down cliché....

I picked up something similar with this example which is also missing the frameline at the bottom and part of one 0:



Does anyone know if this is recognised as a variety?

It is just printing defects, not constantv flaws.Otherwise your stamp could be from position 145 from sheet panel D1 (july 1854 - 1860). 150 stamps in each sheet. 9 main plates.
There is a break in the outside right frame line just below the middle.This is a constant flaw found in this position in plate D1.


https://archives-wikitimbres.fr/pla..._planche=14A

Merci perf12. Thank you for clarifying and for sharing the link to that quite incredible resource.