Due to beauty, size and difficulty of the Princes-Princesses and Belle Epoque sets, I have decided to display them separately. Slania engraved two plates for realization of these sets, one plate was engraved inverted, as die plates are engraved, for printing of black lines and other plate was engraved at right side for printing of colours of stamps in offset. Then, two plates of stamps were required. Some example is shown below.
From the left to the right:
- 04.12.1972. Jacques 1st (1731-1733). Painting by N. Largillière.
12.11.1975. Honoré III (1720-1795), Prince of Monaco. Painting by Louis Tocqué (1696-1772).
12.11.1975. Cathérine de Brignole-Sale (1739-1813), Princess of Monaco. Painting from the French School (18th century).
09.11.1976. Honoré IV (1758-1819), Prince of Monaco. Painting by J.A.M. Lemoyne (1752-1824).
09.11.1976. Louise d’Aumont-Mazarin (1759-1826), Princess of Monaco. Painting by Marie Verroust.
06.11.1980. Albert I (1848-1922), Prince of Monaco. Painting by L. Bonnat.
- 06.11.1980. Marie Alice Heine (1857-1925), Princess of Monaco. Unknown artist.
05.11.1981. Louis II (1870-1949), Prince of Monaco. Painting by P.A. de Laszlo.
05.11.1981. Charlotte (1898-1977), Princess of Monaco. Painting by P.A. de Laszlo.
We can observe above this line the two types of die plates engraved. In this case, artist proofs for Monaco Postal Authorities aprobation signed by Slania and with embossed mark of Monaco Post Office. Of these type of proofs were printed 19 copies, many times in different colours. In this case, the primary die plate printed in blue-lilac and other die plate, for offset print, in brown colour.