1892 Republic of San Marino, ordinary mail stamp type coat of arms 20c. red, overprinted 10 cents small digit to left and right of stamp, in black, oblique overprint variety slanted from bottom to top. 1 value new, perfect, mint never hinged, well centered, Raybaudi certificate. Sassone catalog no. 11, Euro 3250.00. Sassone Catalogue n. NC, Euro unquoted.