1894, 60th Birthday of Princess Dowager, the first issue, 1c-24c, complete set of nine, nice and fresh colors, full/large part of OG, LH or previously hinged, mainly VF, C.v. $2,508, SG #16/24, £2,300

1935, stationery envelope 3c green sent from Peiping (Beijing) to Tientsin, all appropriate markings and machine arrival ds, mostly VF

1943, ''The Thrift Movement'', imperforated souvenir sheet of six with inverted blue three-language overprint ''In Commemoration of Exhibition of Russian Philatelic Society in China. 28-2-1943, Shanghai, China'', black special cancellations in Chinese, perfect quality, no gum as produced, VF and extremely rare, only 18 sheets with inverted overprint were produced, N. Mandrovski certificate

1946, 50th Anniversary of Chinese Postal Service, imperforated die proof of $100 in dark brown, printed on thin cardboard, size 40x32mm, perfect quality, no gum as produced, VF and rare

1955, President Chiang Kai-shek and Flags, 20c-$7, souvenir sheet of four, right selvage is intact, fresh, no gum as issued, NH, VF, C.v. $300

PIONEER FLIGHT COVER: June 23,1933, red band from Kaolan (Lanzhou) to Tientsin, franked by a vertical pair of 15c gray green on reverse, several postmarks, including Tientsin ''24.6.23'' with wrong date, minor front part water discoloration, still F/VF

Air Post stamps. 1950, Peasants, 16y-144y, complete set of five, two stamps with sheet margins, full OG, NH, VF, C.v. $255

1959, Mongolian Language Congress, 40m multicolored, right sheet margin block of four, imperforated vertically between stamps and on the right, full OG, NH, VF

POSTAL HISTORY GROUP: 1958-63, five envelopes, three of which are illustrated ones, three of solo franking and one - bearing eight values, all sent from Ulaanbaatar, three addressed to China, one - to Soviet Union and one - to England, appropriate markings, mostly VF

1972, Munich Olympic Games, 2ch-15ch, unissued complete set of four, full OG, NH, VF and scarce, C.v. $3,000

1979, 30th Anniversary of the People's Republic, 400 yuan, complete set of four proof gold coins, weight 16.95g x4 (0.917 gold), AGW 2.000oz, each coin is certified by NGC, PF69 Cameo or Ultra Cameo, 23,000 sets were produced of this popular issue (Est. $4,500- $5,500)

1980, Lake Placid Winter Olympic Games, 1 yuan, complete set of four proof brass coins, weight 12g x4, minor usual toning, officially sealed in the plastic board with Olympic Emblem, mintage 29,000 sets (Est. $200- $250)

1980, Winter Olympics, Speed Skating, 30 yuan, piefort proof silver coin, weight 30g (0.850 silver), NGC certified, PF66 Ultra Cameo (Est. $1,300-$1,500)

1980, Winter Olympics, Speed Skating, 30 yuan, piefort proof silver coin, weight 30g (0.850 silver), sealed in plastic with mint certificate (Est. $1,300-$1,500)

1980, Winter Olympics, Alpine Skiing, 30 yuan, piefort proof silver coin, weight 30g (0.850 silver), sealed in plastic with mint certificate (Est. $1,300-$1,500)

1980, Winter Olympic Games, Speed Skating, 30 yuan, proof silver coin, weight 15g (0.4823oz, 0.850 silver), original box with COA, 5,000 coins were minted (Est. $120 -$150)

1980, Winter-Summer Olympic Games, 20 yuan and 30 yuan x3, set of four coins in proof quality, 10.35g and 15.0g x 3 (0.850 silver), ASW 1.5128oz, each coin is in individual plastic capsule in a box with COA for the set, only 20,000 sets possible, individual mintage 20,000 -29,000 (Est. $250-$300)

1980, Summer Olympic Games, Soccer, 30 yuan, proof silver coin, weight 15.0g (0.850 silver), ASW 0.4099, sealed by the mint sleeve, COA (Est. $100-$120)

1982, Soccer World Championships, 25 yuan, complete set of two silver proof coins, weight 19.44g x2 (0.800 silver), coins are in plastic capsules, no box or certificate, mintage 40,000 sets (Est. $150-$200)

1984, Outstanding Historical Figures (I issue), 5 yuan, complete set of four proof silver coins, weight 22g x4 (0.900 silver), each coin is in plastic capsule, wooden box and COA, mintage 14,000 sets (Est. $250-$300)

1984, Outstanding Historical Figures, Emperor Huang Di, 100 yuan, gold proof coin, weight 1/3oz, fineness 0.916 gold, mintage 25,000 pieces, original box and COA are included (Est. $600-$700)

1985, Panda, 10 yuan, proof silver coin, weight 27g (0.900 silver), PF Ultra Cameo, coin is in plastic capsule in a box with mint COA, a scarce coin of mintage 10,000 examples (Est. $1,000-$1,200)

1985, Year of the Ox, 10 yuan, proof silver coin, weight 15g (0.900 silver), coin is officially sealed, mintage 10,000 (Est. $200-$250)

1985, Outstanding Historical Figures (II issue), 5 yuan, complete set of four proof silver coins, weight 22g x4 (0.900 silver), each one in plastic capsule, no box or COA, mintage 30,000 sets (Est. $300-$400)

1985, 30th Anniversary of the Sinkiang (Xinjiang) Autonomous Region, commemorative 5oz silver proof medal, certified by NGC, PF67 Ultra Cameo, mintage 3,000 (Est. $400-$450)