1921 1c black and gray brown, right margin block of six, imperf. vertically with horizontal perforations shifted, unused without gum, v.f., with 2014 Colla certificate (Sass. 21ma) cat. €3000 (Cat No. 20var) (Image)

Cat. €3000, Est.US$350

1921 50c black and brown, error of color, block of four, with center shifted to the right, l.h., usual centering, fine, with 2014 Colla certificate (Sass. 28Ag) cat. €6400 (Cat No. 27a) (Image)

Cat. €6400, Est.US$750

1921 10L dull blue and olive green, perf. 14x13 1/2, left sheet margin horizontal pair, n.h., v.f., with 2014 Colla certificate (Sass. 32a) cat. €3600 (Cat No. 31d) (Image)

Cat. €3600, Est.US$600

1924-40 10c black and dull red, two imperf. copies (actually a scissors separated and rejoined horizontal pair), used, v.f., with 2014 Colla certificate (Sass. 47k) cat. €20000 (Cat No. 51var) (Image)

Cat. €20000, Est.US$1,000

1924-40 55c black and violet, center shifted variety, left sheet margin single, n.h., v.f., with 2014 Colla certificate (Sass. 52f) cat. €3600 (Cat No. 56var) (Image)

Cat. €3600, Est.US$400

1924-40 75c violet and red, horizontal pair imperf. between, n.h., v.f., with 2014 Colla certificate (Sass.104c) cat. €8000 (Cat No. 57var) (Image)

Cat. €8000, Est.US$600

1924-40 1L dark brown and brown, upper left corner margin horizontal pair, left stamp imperf. at left, n.h., fine, signed Diena, with 2014 Colla certificate (Sass. 65g) cat. €2800 (Cat No. 58var) (Image)

Cat. €2800, Est.US$400

1924-40 1.25L indigo and ultramarine, right sheet margin vertical pair, imperf. at right, n.h., fresh and v.f., signed Diena, with 2014 Colla ertificate (Sass. 105b) cat. €9600 (Cat No. 59var) (Image)

Cat. €9600, Est.US$600

1915 Servizio Commissioni, 30c rose, bottom margin vertical strip of three, overprint double (once in margin), top two stamps hinged, bottom stamp n.h., fine-v.f., signed Diena, with 2014 Colla certificate, cat. €4800 (Cat No. Sass.1a) (Image)

Cat. €4800, Est.US$400

1929 3rd Sample Fair, presentation card containing set of six proofs, v.f. (Cat No. B17-22P) (Image)

Est.US$750

1921 "Italia" 25c (unissued in this value), two imperforate proofs in red brown and blue & red, v.f.. A rare pair of proofs (the rates were changed to 30c and 50c and stamps were issued in those values), signed Diena, with 2014 Colla certificate (Image)

Est.US$1,000

1926-36 1.25L on 60c dark red and brown, black surcharge, used, creases, otherwise fine and rare, with clear 1966 and 1982 Diena certificates (Sass. 11, Euro 40,000) cat. $18000 (Cat No. E11b) (Image)

Cat. $18000, Est.US$2,500

1926-36 1.25L on 60c dark red and brown, surcharge inverted, hinged, fine, with 2015 Colla certificate (Sass.12b) cat. €12000 (Cat No. E11var) (Image)

Cat. €12000, Est.US$1,000

1926-36 2.50L on 2L dark blue and red, perf. 11, bottom margin block of ten, bottom middle stamp with short "2" variety (pos.48), n.h., fine-v.f., signed Diena, with 2014 Colla certificate (Sass.13e) cat. €9300 (Cat No. E12var) (Image)

Cat. €9300, Est.US$1,000