Uruguay 1857-1859, Please Opinion Of Experts In This Area

If there is an opinion of experts in this field!
120 Ce, red-brown, used with good mark. I dont find in catalog.

Government issues from 1859 (thin numerals) or 1860 (thick numerals). SC#7 through 17. But I see the 120c should be blue. Perhaps yours is a forgery?

Thanks JameswI I know for issuse but I look for expert if exist for that area in SCF. Is that forgery or somethnig else because mark is original.

Sorry Rafa. I'm certainly no expert. I do know that philatelic forgers Jean de Sperati and Philip Spiro definitely both forged this issue. Looking at a random selection of images of this issue from the internet, I can see that the face of the sun on your stamp looks very different from all these others. My selections have very round cherubic faces while your stamp it is much thinner and more serious looking. Notice the flowers in the corners are also drawn in a much cruder fashion on your stamp.
I would also suggest that there is nothing to stop a forger from printing a stamp in the wrong colour.
Not proof I know, but it would get me thinking that your stamp has some problems.

Let me also point out that your stamp seems to be missing the accent (´) over the E in CENTÉSIMOS.

There is something very strange happening on the right side of your stamp as well. Appears to be two rings and possibly a number (?) printed in the same colour as the stamp. Very conveniently, though not thoroughly masked by a messy cancel.

The face of stamp does not look properly, color not exist, I am not smart for that. These are examples of my collection with certified.

I do not trust certificates of the Briefmarkenprüfstelle Basel. They had many dubious opinions.

i dont know for that , all my stamps and that I buy in Germany auction house

It is a forgery. All the main characteristics are missing.
Just look at the T that is too wide, the lines from the sun, the last S passes the corner, the 4 ornaments of the corners, the missing accent over the E , etc.
Here I send you a picture with the main points of the originals .
At left thin numbers at right thick ones.