Sinkiang. 1921, 25th Anniversary of the National Post Office, black overprints on 1c-10c, complete set in blocks of four, three of which with marginal imprint, full OG, NH, VF, C.v. $395 as hinged single sets (Image)

Sinkiang. 1924-29, black or red overprints on the 2nd Peking issue ½c-$10, red overprints on Chiang Kai-shek 1c-$1 and black overprints on Sun Yat-sen Mausoleum 1c-$1, three complete sets affixed over three pages from a souvenir album, all are unused, considered to have no gum, mostly VF, C.v. $1,259 (Image)