1851 5s gray black, 20c blue, 40c carmine rose, unused without gum, margins all around, fresh and beautiful colors, v.f., with Dr.Avi certificates (Sass.1,2,3b, Euro 25,250 as unused without gum) cat. $10100 (Cat No. 1-3) (Image)

Cat. $10100, Est.$3,000

1851 20c blue, First Printing, unused with large part original gum, h.r. and little ageing, margins all around except just in at upper left, horizontal gum crease, good color, signed by Dr. Helmuth Avi, with his 2018 certificate (Sass.2a, Euro 28,000) cat. $9500 (Cat No. 2) (Image)

Cat. $9500, Est.$1,000

1861 1c black, embossing omitted, horizontal pair, n.h., v.f., with Dr.Avi certificate (Sass.19h, Euro 2,000) (Cat No. P1var) (Image)

Est.$300