1950s unused and unfolded yellow letter sheet (153:176mm) essay, showing non-denominated Transportation indicia surcharge (19:221/2mm) in black (Train, Airplane and Ship), perforated and gummed, v.f. and rare stationery essay (Image)

Est.US$250

1878 stationery essay, imperforate and unfolded pair of 1c black, type 6, unused, v.f., rare (Cat No. UY1E-Jd) (Image)

Est.US$500

1929-44 5c dark ultramarine, large uncut proof on empire bond (210x280mm), v.f. and extremely rare (Cat No. UC1P) (Image)

Est.US$1,000

1901 1c black on buff postal card, imprinted "Die Proof of the McKinley Postal Card. Issue of 1901", unused, minor creasing and hinge thins, otherwise fine, scarce proof of the Full Face McKinley Postal Card (Cat No. UX17P) (Image)

Est.US$500