Vintage China Clipper Stamps – US 10 Centavos Block of 4 with Overstamp (P.I.U.S. Initial Flight, 1935)
This lot features a compelling collection of four (4) United States 10-centavo stamps featuring an overstamp commemorating the “P.I.U.S. Initial Flight – December 1935” with the iconic China Clipper seaplane….