1874 1c olive green, overprint displaced downwards, n.h., fine, signed Colla, cat. €4500 (Cat No. Sass.1h) (Image)

Cat. €4500, Est.$750

1874 1c olive green, overprint displaced downwards, block of four, n.h., fine, with 1995 Diena certificate, cat. €18000 (Cat No. Sass.1h) (Image)

Cat. €18000, Est.$3,000

1874 5c slate green, lower right corner not altered variety, h.r., fresh color, v.f. and rare, with 1981 Diena certificate (Sass. 3b, Euro 38,000) cat. $24000 (Cat No. 3a) (Image)

Cat. $24000, Est.$1,500

1874 5c slate green, horizontal pair, left stamp showing the lower right corner not altered, used in combination with additional franking including additional pairs of 5c and 10c on coverfront from Tunis to Pisa, faint toning, with 1990 Dr.Enzo Diena certificate (very rare example of "francobollo con angolo non modificato su documento") (Cat No. 3a) (Image)

Est.$1,200

1874 10c buff, upper left corner not altered (position 16), unused with some gum, good color, natural inclusions and minor imperfections at bottom, signed Calves, with 2009 du Vachat and 2011 Dr.Avi certificates (one of only two (!) known unused) (Sass. Euro 50,000) cat. $30000 (Cat No. 4a) (Image)

Cat. $30000, Est.$7,500