I have 3 charcoal (?) paintings from what I believe is the Spanish Civil War, I am interested to find out if they have any significant value. I am attaching one, with the artists name blown up for detail, thanks.

You could go to this website:
Illegible Signatures - Artists' Signatures (http://www.artistssignatures.com/illegibles.php?page=0)
And maybe find the artists name and bio (they specialize in illegible sigs)
This would help ID the artist and possibly date them... thats half the battle.
Hope this helps..
NATF

I can't even figure out the signature: Jim? Dim? I know it is dated 1936, only. Thanks anyway

Found it!
José Luis REY-VILA (1900-1983)

José Luis REY-VILA (1900-1983): José Luis Rey Vila was born in Cádiz in 1900 and he studied at the Academies of Cádiz and Barcelona. He is famous for his drawings of the Spanish Civil War he signed under the pseudonym of SIM. He is also very known for his drawings and water-colors of Don Quichotte, of the Second World War, of Flamenco dancers, of toreros portraits and corridas scenes, of horses skecthes. He settled in Paris in 1937 and realized many views of Paris.

Oficinas De Propaganda (Propaganda Offices) C.N.T./Confederacion Nacional Del Trabajo (National Confederation of Workers) - F.A.I/Federacion Anarquista Ibérica (Anarchist Federation Iberian) & SIM (pseud. Of José Luis REY-VILA): Estampas de la Revolucion Espanola 19 Julio 1936. Barcelona Grafos. Colectivizada. 1936. In-4°, -64p. 31 full color plates by J.L. REY-VILA.

Miguel de Cervantès Saavedra: Don Quichotte de la Manche. Paris. Le Club du Livre/Georges LANG. 1958. 4 vol. in-4°, 100 illustration in & out of text by José Luis REY-VILA.

Museum: Cádiz

Source: Bénézit

Now, what do I have? Original or lithograph? There is one pencil mark on the back of one that says "1286" I have a scanned high resolution example, the painting (?) shows depth but I can't tell. [Email address removed for privacy.]

Hi, Lazydavid!

Congratulations on your find!

Once a thread has been started, all information needs to stay on the thread so that others with similar questions will benefit by the information that's exchanged.

That being so, I did need to remove your email address. I would also hate to see you get spammed because your email address was visible here.

Thanks!

I have this same picture plus 4 others. The color is not quite as intense. Mine also has a penciled number on the back (24) but I also have a printed title "Departure" in Spanish, French and English with a brief narrative.

I have a spiral-bound (printed) portfolio of the 31 plates as described by Lazydavid. It has a 1-page introduction headed, "The Doorway".
Each plate has a short narrative on the facing page (which is the back of the previous plate). Your posted image is titled, "A Hero", and the (English version of) narrative reads: A hero. Wide of brow, a steady gaze, and square of jaw, and nerves of steel to any danger. This is the figure which typifies personal courage, blended withintelligence and audacity.
The back of this "A Hero" plate contains the narrative for, "Departure", a plate that depicts a truck full of soldiers standing with rifles held high as it departs from a single soldier at military rest with his rifle at his left side and his right hand, with fist held high, supplying a farewell salute.
This portfolio seems to be available from Amazon for $250, and more.
My guess: if your plate has printing on the back, as I described, it is likely a page from a portfolio; but, if it has no printing on the back it may well be a replica or an original. I hope this helps. Thanks for the research and good luck. Henry