1892, Overprint proof in black made by Sperati with the "dropped B" variety, dated in pencil 5/43, the only proof known in black, fine (Image)

1892, Allegory 1c. black on blue, Sperati forgery with "dropped B" variety, unused, the only known copy of the 1c. with the Sperati overprint, small nick at left, otherwise fine (Image)

1892, Allegory 4c. violet-brown on gray, Sperati forgery with "dropped B" variety, unused, one of only three known copies of the 4c. with the Sperati overprint, fine (Image)

1892, Allegory 5c. green with blue overprint, Sperati forgery with "dropped B" variety, unused, one of only four known copies of the 5c. with the Sperati overprint, small thin in the lower left corner, otherwise fine, signed Sperati / Reproduction (Image)

1892, Allegory 25c. black on lilac-rose, Sperati forgery with "dropped B" variety, unused, the only known copy the 25c. with the Sperati overprint, fine, signed Sperati / Reproduction (Image)

POSTAGE DUE: 1894, Numerals 5c. black, Sperati forgery with "dropped B" variety, unused, the only known copy with the Sperati overprint, fine, signed Sperati / Reproduction (Image)