1858 10k brown & blue, perf. 12 1/2, horizontal strip of three, boxed "Franco" handstamps, fine multiple used in Constantinople (Image)

Est.$250

1863 6k blue, first issue on thin paper, vertical strip of four (complete sheet as issued), also 1866 6k blue, imperf. sheetlet of four with full margins all around (minor hinge thins in outer margins, stamps n.h.), the former with typical marginal faults, also stains affecting bottom stamps, signed Mikulski, the latter with Royal certificate (Cat No. 1,1c) (Image)

Est.$3,000

1865 Sperati forgeries, two different stage proofs of the 2k stamp on glazed paper, handstamped "Reproduction Interdite", signed Sperati (Cat No. 2F) (Image)

Est.$500