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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Drbobstamps Us Scott #292 Used 1.00 Trans-mississippi W/ Pf CertificateMr Fancy Cancel 8a Sound Four Margin Position 95r2 Weiss Cert Cv$900 No ReserveDrbobstamps Us Scott #r150 Very Scarce Well Centered Stamp W/aps Cert Cat $800Ckstamps : Us Stamps Scott #21 1c Type Iii Franklin 1857 Used Cv$2500 W/cert.Noblespirit No Reserve Extremely Rare #c76-c76a Error Sheet With Pse CertificateU.s. #e11c Choice Mint Nh W/cert - 10c Blue, P11 ($190)Mr Fancy Cancel 138a I Grill Used Sound Light Cancel Weiss Cert Cv$1400 No ReserMr Fancy Cancel Csa 16xu1 Cover Charleston Prov Weiss Cert Ex-kauffman Cv$2750Mr Fancy Cancel Us #1 Appears Unused Removed Cancel 4 Margin Weiss Cert No Reser#10 Pair With CertNystamps Us Postage Due Stamp # J58 Used $1600 W/certCkstamps : Us Stamps Scott #22 1c Type Iiia Franklin 1857 Mint H/og Cv$2400 Cert#rw1 Bird Hunting Certificate & Stamp 1934 First Issue Bn9495Csa. 1865 Arkansas Certificate Of Disability For Exemption From Military Duty.Noblespirit Noreserve (krid) Excellent Superlative Gem Xf Jumbo Nh W/certificateNoblespirit No Reserve (krid) Us 1 With Pf Certificate= $650 Red CancelU.s. #524 Mint Nh Beauty W/cert - $5 Green & Black ($360)Sb1 Stamps - 1922 $5 'america' W/2015 Weiss Cert, Graded 95/98; Sc. 573; M/vlhHawaii, #8, Used, With Hps Cert. Scarce HawaiianUs Scott R24a 5c Certificate First Issue Revenue Stamp S29rU.s. #73 Choice Used Vf W/cert - 2c BlackjackSb1 Stamps - 1915 5c Pan-pacific Expo W/2015 Weiss Cert.; Sc. 403; Vf/mnhNystamps Us Stamp # 34 Used $3250 W/certU.s. #217 Choice Mint Vf W/cert - 30c Orange Brown ($250)Nystamps Us Stamp # 95 Used $900 Grill W/certBaseball Alvin Crowder Autograph On Larger #2046 Babe Ruth Fdc (no Cert)C1 Mint, Full Gum, No Hinge, With CertificateDr Jim Stamps Old Us Revenue Scott R24 5c Certificate Used No ReserveScott 63 1861 1¢ Franklin Unused Fine Ng Cat $100 With Aps Certificate!R44c 25¢ Revenue: Certificate (1862) Circular Date StampU.s. 1910 Bovard Consolidated Mines 500 Shares Certificate #d1522 (gg110)U.s. 1910 Bovard Consolidated Mines 500 Shares Certificate #d1526 (gg111)U.s. 1954/57 #e20, E21 & Fa1-special Delivery & Cert. Mail-set Of 3-mnhDr Jim Stamps Old Us Revenue Scott R44 25c Certificate Pair Used No Reserve