1899-1920, a valuable mint and used collection heavily duplicated in pieces, with blocks, panes, errors and varieties and including 1899-1904 "Kitai" overprints on horiz. laid paper. 5k. complete sheet of 100, 1904-08 "Kitai" overprints on vert. laid paper to 10r. (2, mint) including 7r. pane (5x5) used on sheet attached to a parcel accompanying card from Shanghai, 1910-16 "Kitai" overprints on wove paper with mint blocks to 70k. and 5r. block (5x3) used on sheet attached to a parcel accompanying card from Shanghai, 1917 "Cent's/Dollar" surcharges, with values to 10d. on 10r. (3, mint) and including wove paper 3c. on 3k., 35c. on 35k. (2) and 5f. on 5r. with inverted surcharge, 14c. on 14k. imperf. block (5x2) mint and 1920 C.E.R. with blocks, errors and varieties including perf. 4c. on 4k. inverted surcharge and imperf. 1c. on 1k., 5c. on 5k. inverted surcharges and 5c. on 5k. double surcharge, mint. Mainly fine. (Several hundred)