MONACO (1970) Red Cross. St. Louis giving aims to the poor. Yvert 788  Scott 721 Trial Color Proofs in full sheet of 10.

Red Cross. Religion. 

Beautiful Color Proofs Sheet of 10 for stamps Printed on 6 color presses.  Only eight different combinations of colors are printed.  Therefore very rare as sheets have been cut to sell Proofs as singles or pairs.

Two Dies are prepared for each stamps (taille douce, taille douce report).  Engraver: Haley