The "Flagship" sale of United States stamps #660

1857, First Issue imperforate, 10k brown & blue (1), a breathtaking mint example, boasting huge even margins and luxurious, rich colors & impression, along with nearly full yellow-white original gum, extremely fine and choice, a simply remarkable example of this rare and legendary stamp, o.g., lightly hinged, ex- Salisbury, ex-Lovitz; 2014 Royal Philatelic Society photo certificate. Scott $25,000 for a no gum example. Michel 1. Zagorsky 1. Zverev 1.