Amedeo Preziosi 2a

This print was provided by David Hakim, he also describe how they look, here is his description:
They are 11 1/4 x 16 3/8 inches, mounted on an older heavy paper stock (15 1/8 x 22 1/2 inches) that is stained, foxed, and torn at the edges. Of course i cannot see that pack of the actual work because of the mounting. The ink is pretty thick and consistent in coverage, and without a magnifying glass they appear to be hand-painted. but i suspect that they are very old prints, as the colors seem to be set. they are done with some kind of silk-screen or litho process, since there is no dot structure as a rotogravure or halftone would show. Each one has a single-digit number in the lower corner, as if they were used for costuming in an opera or stage production.
He would be very appreciate if someone could provide more detailes about this print.

Current image is similar to http://artmight.com/Artists/Amedeo-Preziosi/Amedeo-Preziosi-An-Egyptian-Man-With-A-Pipe-52469p.html