1950, 1l. bistre, marginal block of ten, two stamps (2nd row from top) IMPERFORATE, unmounted mint, signed and certificate Raybaudi [Sass. 13l (2)]. Only 20 imperforate copies are known to exist, very rare and attractive within a large unit, possiblyunique! (M) (Tax Method: Margin System) (Image)

1950, 100l. blue, marginal block of three from the upper left corner of the sheet, centre stamp showing variety "double perforation vertically and at base" (due to double strike of perforation comb), unmounted mint, signed and certificate Raybaudi (Sass. 22s). Only ten copies are known to exist! (Tax Method: Margin System) (Image)

1949, 200l. green, block of three, centre stamp showing variety "double perforation vertically and at base" (due to double strike of perforation comb), unmounted mint, signed and certificate Raybaudi (Sass. 23s). Only ten copies are known to exist! (Tax Method: Margin System) (Image)