Postal Stationery - 1947 CSS# PC-35 Han 64 $50 surcharge on $10 green, Hopei Postal District (B=9 mm, C=6.5 mm) registration mark at LR

Postal Stationery - 1947 CSS# PC-35 Han 64 $50 surcharge on $10 green, Hopei Postal District (B=9 mm, C=6.5 mm) registration mark at LR