A Block of Four United States 1901 Deep Red-Brown & Black Pan-American Inverted Center 4-Cent Stamps #296a with certification from The Philatelic Foundation, stating: 'It is genuine, unused, with slightly disturbed O.G., the block with some rejoined horizontal perforations at right, a small horizontal crease at top right, the top left stamp partly reperforated at top, and the bottom right stamp with a diagonal crease'.