Need Help With Mexican Stamps

Hello
I'm organizing my stock books and ran into a few mysteries.
I'm using stamp-world, SCW, Big blue, and simplified Scott and SG. Didn't help me.

The first set is not mentioned anywhere. Any idea what it is, and if it's genuine?

Second row:

The first to the left commemorates nationalism of oil companies.
When was the original one issued, when was this overprinted issued, and what is the overprint?

What is the middle one, and what is the overprint?

The left one was issued without overprint at 1910. I think this one was issued on 1916. What is the overprint?

Any remark will be helpful.

The first set looks very similar to Scott 386-388, but they have an eagle in the middle.

Thanks, ggrave, you pointed me in the right direction:
These stamps were ordered in 1915 by Francisco Villa, to be used by the Constitutionalist government.
Five values (1 c green, 2c brown, 3c carmine, Sc blue, and 10c yellow) were printed by Ellis Brothers & Co., El Paso, Texas.
By the time of the stamps' arrival in Mexico City, the Constitutionalist regime had fallen, and the new Conventionist government returned them to the printer, who later sold the unissued stamps within the philatelic market.

Lovely Avatar !

Thanks. And she was a lovely girl.

Anne has a place in our hearts.

I like your avatar as well and it is in my collection as well. A friend of mine brought back some from a trip. She visited the Anne Frank house that is now a museum.

Thank you both.
I think that there are 5 stamps with her image, from 5 countries.

Any ideas on the 3 bottom stamps?

3rd bottom row:I just googled Mexican stamps overprints..
https://forums.collectors.com/discu...e-overprints

There is someone selling a serie of the "adicional"overprint.
On e bay.com. You might ask him for some details.Search under:Mexico 1941 Adicional overprint

Thanks Perf.
From what I googled too, the left stamp's overprint might be "entidades operativas", which has to do with tax.
Couldn't find any reference to "adicional" overprint yet, guess it's safe to assume that the left stamp is tax stamp, the right one is a postage stamp, and the middle might also be tax stamp.

You might contact (email) SCF member rtvstamps ---- https://goscf.com/t/54867

Hello friends!. (thanks oldguy)

Here some information:





Overprint: G.P. de M. = Gobierno Provisional de México - "Provisional Government of Mexico"

The another two are Fiscal stamps without tab.

Regards!
Rodolfo

Thank you very much.
Do you know if the two Fiscal stamps were used as Fiscal before the overprint, or were they ordinary postage stamps?
Rodolfo, how does it feel when you see collectors struggling to learn in depth about the stamps of your country?

Hello Rob!

Sorry for delay in reply, but I had some problems after the earthquake in my Country (September 19).

Normally the stamps were distribuited with Overprint for use in that's regions (Mexico, Chihuahua, Guadalajara, etc.).

I feel very well when someone is interested in Mexican stamps .

Regards!
Rodolfo