If there is one Spaghetti Western that I could pick that I am aching to see out of all the known titles it would be Amando de Ossorio's TOMB OF THE PISTOLERO from 1964 with George Martin, Jack Taylor, Luis Vilar, Silvia Solar, Luis Induni, Frank Braña, José Canalejas, Aldo Sambrell, Ángel Ortiz, Todd Martens, Tito García, and Mercedes Alonso.
First, just LOOK at the names in that cast. Second, Ossorio is of course most famous for his Spanish Gothic Horror "Blind Dead" thrillers, all of which are densely atmospheric, arty, visually oriented, and unique movies. Ossorio also executed the "Medusa" creation and "Hydra" monsters from the Richard Harrison Peplum MEDUSA AGAINST THE SON OF HERCULES from the same year, and one can't help but wonder what kind of horror oriented elements he wove into PISTOLERO's tapestry.
But strangely, his 1966 followup Western, THREE FROM COLORADO (which is fairly easy to find in it's German language form, called GNADENLOSE KILLER) is almost frustratingly "ordinary", lacking much of the visual stylistics that make Spaghettis so special when compared to their Hollywood oriented counterparts.
Has anyone ever actually seen it? I have a beautiful lobby card from Belgium but have never even heard of the movie having been transferred for home video, would love to learn more about it and would be willing to go deep into the well to trade for a copy.