1857 6d black bronze Swan Imperforate, Watermark Swan Sideways, used and accompanied by a 2010 American Philatelic Society certificate stating "genuine" and noting "cuts frame at top". This black bronze shade is listed in Stanley Gibbons as #18.A fresh and very fine condition stamp. (Image)

Scott $ 900

1860 4d deep blue Swan Imperforate, Watermark Upright Swan, unused (no gum) with fresh, deep colour, four large margins and very fine in all respects. One of the nicest example we recall seeing. (Image)

Scott $ 325

1860 6d sage green Swan Imperforate, Watermark Swan Sideways, used with light numeral postmark and margins just clear or just touching all around except a tiny bit in at lower right corner, still a sound and fine stamp. (Image)

Scott $ 875