1c Green & Black on Violet Paper, Imperforate (RB1c). Bottom left corner margin block of twel (Image)

$ 1,425.00

1c Green & Black on Green Paper, Proprietary, Inverted Center (RB1d). Deep rich colors and de (Image)

5,250.00

3c Green and Black on Green, Proprietary (RB3b). Block of 85 which is a half-sheet, selvage a (Image)

$ 6,767.50

3c Green and Black on Green, Proprietary (RB3b). Block of 16, original gum, h.r. where (Image)

$ 1,300.00

3c Green and Black on Green, Proprietary (RB3b). Reconstructed block of 16 comprised of block (Image)

1,200.00

6c Green & Black on Violet Paper, Proprietary (RB6a). Block of 24 (6 x 4) with bottom part im (Image)

$ 2,100.00

$1.00 Green & Black on Green Paper, Proprietary (RB9b). Deep rich colors and detailed impress (Image)

$ 12,500.00

1c Green, Proprietary Issue, Rouletted 6 (RB11c). Block of four with top plate no. 3, (Image)

$ 875.00

3c Orange, Proprietary, Rouletted (RB13c). Top imprint and "BuE & P" block of 12, original gu (Image)

$ 2,250.00

4c Red Brown, Proprietary, Wmk. 191R (RB14b). Block of 40 with imprint and plate no. 12 at to (Image)

$ 450.00

4c Red, Rouletted, Proprietary (RB15c). Unused (no gum), intense shade on deeply colored pape (Image)

$ 400.00

4c Red, Rouletted, Proprietary (RB15c). Reconstructed vertical pair, original gum, h.r., rich (Image)

$ 900.00

5c Black, Rouletted, Proprietary (RB16c). Original gum, single hinge mark, with part impri (Image)

$ 1,850.00

5c Black, Rouletted, Proprietary (RB16c). Original gum, lightly hinged, deep shade and detail (Image)

1,850.00

5c Black, Rouletted, Proprietary (RB16c). Unobtrusive handstamp cancels, Fine and attractive, (Image)

1,850.00

5c Black, Rouletted, Proprietary (RB16c). Unused (no gum), wide margins on fresh paper, detai (Image)

$ 1,850.00

5c Black, Rouletted, Proprietary (RB16c). Horizontal pair, lightly cancelled, both stamps thi (Image)

3,700.00