As with coins and baseball cards, in recent years some stamp collectors have started submitting their stamps to grading agencies for "expertising". Some of the well-known organizations which issue certs for stamps include PSE, Weiss, PF and APS.

Some stamps will be sold with an existing cert, and other sellers will offer the buyer the opportunity to have a stamp graded and examined by a third party before completing the transaction. As with any collecting purchase, cert or not, caveat emptor!


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Noblespirit No Reserve Extremely Rare #c76-c76a Error Sheet With Pse CertificateDrbobstamps Us Scott #27 Scarce Used Brick Red Variety W/pf Cert Cat $1800Ckstamps : Us Stamps Scott #22 1c Type Iiia Franklin 1857 Mint H/og Cv$2400 CertNystamps Us Stamp # 34 Used $3250 W/certMr Fancy Cancel 8a 1c Type Iiia Pen Cancel Nice Margins Cv$450 Weiss CertMr Fancy Cancel Csa 56x2 Cover Memphis Provisional To Soldier Cv$2000 Weiss CertMr Fancy Cancel 2 Used Very Nice Red Grid Cancel Cv$985 Weiss Cert No ReserveMr Fancy Cancel 85c Used 3c Z Grill Cv$3500 Weiss Cert Very Rare No ReserveU.s. Stamps #122 Vf Scv $2000 CertHawaii, #24, Unused, Hps Cert. HawaiianNystamps Us Stamp # 95 Used $900 Grill W/certU.s. #500 2c Washington Type Ia -- F+ Nh Og -- P.11 -- Cv $550 -- Weiss Cert.Mr Fancy Cancel 22 26 Cover Blue Naples Ny Cds To Michigan Weiss Cert Cv$325+U.s. #289 8c Trans-miss -- F+ Nh Og -- Cv $450 -- Weiss Cert.U.s. #75 5c Jefferson Red Brown -- F-vf Used -- Weiss Cert. -- Cv $475Drbobstamps Us Scott #j7 Scarce Stamp Mint Og Hinged W/clean Pf Cert Cat $600Nystamps Us Postage Due Stamp # J40 Mint Og H/ Nh(1) $460 P# Strip Of 3 W/certCsa #1 Mint Beauty W/cert - 5c Green ($300)1945 - $1.00 Duck Stamp - Sc #rw12 - Mint, Nh, Og - Pse Certificate Xf Plate #Hawaii Scott 38 2c King Kalakaua Xf 94 With Certificate Used V82C1 Mint, Full Gum, No Hinge, With CertificateU.s. #209 10c Jefferson F+ Nh Og -- Cv $475 -- Weiss Cert.Mr Fancy Cancel Fls Scott 11a Boston New Orleans La 1852 Certificate #5022U.s. 1908 Bullfrog 100 Shares Certificate #4030 (gg101)U.s. 1907 Original Bullfrog Mines Syndicate 100 Shares Certificate #7078 (gg108)U.s. #527 2c Washington Type V -- F-vf Nh Og Pb/6 -- P.11 -- Cv $350 -- Pf Cert.Yellow Submarine Stamp Framed W/certificate Of AuthenticityNystamps Us Stamp # 540a Mint Og Nh $125 W/certNystamps Us Postage Due Stamp # J48 Mint Og Nh $275 W/certNystamps Us Postage Due Stamp # J57 Mint Og H $225 W/certNystamps Us Postage Due Stamp # J57 Mint Og Nh $525 W/certNystamps Us Stamp # 538a Mint Og Nh $125 W/certCkstamps: Us Stamp Collection Scott#189a Mint H Og With Pf CertCkstamps: Us Stamp Collection Scott#246 Mint Nh Og With Pse CertUs Graded: Scott 838. Pse 98 Nh. Certificate. Only 5 Graded Higher!!#300 1c Franklin Imperf Pair With Private Perfs. 1903 Issue. Mint. Needs Cert.Us Scott 259 Used 276 Used Vf With Pse Certificate CertU.s. 1909 Old Hundred Mining Company 100 Shares Certificate #2569 (gg102)U.s. 1910 Bovard Consolidated Mines 500 Shares Certificate #d1526 (gg111)U.s. 1910 Bovard Consolidated Mines 500 Shares Certificate #d1522 (gg110)U.s. 1907 Mitchell Mining Company 100 Shares Certificate #10828 (gg104)U.s. 1911 King Edward Silver Mine 100 Shares Certificate #a6236 (gg109)U.s. Stamp Scott #497 Superb Nh Gem W/cert - 10c Yellow, Rotary Coil Pair EuroCkstamps: Us Stamp Collection Scott#96 Used With Aps CertStamp Collection & Stock Certificate Lot1c Franklin With Private Perf, Mint With Full Gum. Requires CertificateDr Jim Stamps Old Us Revenue Scott R44 25c Certificate Used No ReserveDr Jim Stamps Old Us Revenue Scott R44b 25c Certificate Used No Reserve