1941 Ljubljana, Italian occupation, 20d. dark green, airmail stamp of Yugoslavia of 1937-40 overprinted “R. Commissariato Civile Territori Sloveni Occupati LUBIANA” and three horizontal rows of rhombuses in black perforated 12.50 x 12.75. 1 value, new perfect, mint and never hinged. Catalogue Sassone n. 7/I, Euro 2500.00.