MONACO (1949) Cactus plants*. Stage die proof in black signed by the engraver SERRES and marked épreuve d'état. Scott No 238, Yvert No 325.
AVAILABLE AT $160
MONACO (1960) Cereanea cactus*. Die proof in black signed by the engraver MIERMONT. Scott No 471, Yvert No 541.
AVAILABLE AT $160
MONACO (2008) Cacti*. Plants*. Stage die proof signed by the engraver LAVERGNE and marked "Epreuve d'Atelier". 75th anniversary of exotic garden. Scott No 2498.
AVAILABLE AT $225
MONACO (1980) Cacti*. Exotic garden*. Die proof in dark green signed by the engraver JUMELET. Scott No 1140, Yvert No 1214.
AVAILABLE AT $160