1849 King Leopold, 20c blue watermarked, unused without gum, margins all around, beautiful color, v.f., signed Bloch (catalogued as unused without gum) cat. $1900 (Cat No. 2) (Image)

Cat. $1900, Est.$1,000

1849 Framed Watermark, King Leopold, 20c dark blue, unused with crackly original gum, never hinged and post office fresh, margins all around, v.f., with 1966 Williame certificate ("en parfait etat, belles marges, pleine gomme originale et fraicheur exceptionnelle") (catalogued as hinged) cat. $2200 (Cat No. 4) (Image)

Cat. $2200, Est.$1,500

1851 10c brown, two distinct shades, unused, one without gum (signed Bloch), the other h.r., margins mostly all around, fine, cat. $1000 (Cat No. 6) (Image)

Cat. $1000, Est.$250

1851 20c blue, unused with original gum, h.r., margins all around, fine and scarce unused stamp, with 1996 APS certificate, cat. $800 (Cat No. 7) (Image)

Cat. $800, Est.$250

1919 25c Perron of Liege, single from sheet, h.r., fine, with handstamped guarantee, cat. $400 (Cat No. 123B) (Image)

Cat. $400, Est.$100