1930-32 2c and 5c Dark Violet Postage Due Issues, a mint never hinged lower right corner block of 12 of the 5c, and a mint never hinged upper marginal plate "1" block of 10 of the 2c, both fresh and very fine. (Image)

Unitrade $ 1,290

1934 1c Dark Violet Postage Due, a mint never hinged upper right corner plate 1 block of 10 of the 1c, and an upper left corner plate 1 block of 4 of the 4c, both very fine. (Image)

Unitrade $ 730

1934 1c Dark Violet Postage Due Imperforate, a mint never hinged left marginal horizontal pair, fresh and extremely fine. Only 100 pairs known. Rsv. $450. (Image)

Unitrade $ 1,000

1935 4c Dark Violet Postage Due with Dramatic Misperforation Error, a mint never hinged upper left corner plate block of 21, all horizontal perforations shifted up by 10mm, ending up in the middle of each stamp, fresh and very fine. Ex Stan Lum. Rsv. $1,700. (Image)

Est $ 2,000