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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1894, Us Scott #263, Used With CertificateDrbobstamps Us Scott #e10 Mnh Og 2017 Scv $1500 W/pse Cert. (see Description)Usa # 1a 5c Franklin Dark Brown With Certificate 1847 Imp.used Cat 850 Us832b, Top Margin Single, Mog-nh, With Pf Certificate, Scv $200Drbobstamps Us Scott #17 Sound Used W/graded 85 Pse Cert. (see Description)U.s. #599a Mint Nh W/ Cert - 2c Carmine, Type Ii Coil ($200)U.s. #64 Scarce Used W/cert - 3c Pink ($675)U.s. #291 Mint Nh W/cert - 1898 50c Trans-mississippi ($1,800)Drbobstamps Us Scott #395 Scarce Mnh Coil Lp W/pse Cert. 2017 Scv $1100U.s. #422 Mint W/cert - 50c Violet, Dlw ($225)Ckstamps: Us Stamps Collection Scott#113 2c Pictorial Mint No Gum Weiss Cert Ckstamps: Us Stamps Collection Scott#40p5 1c Franklin Unused Ng Proof Pf Cert#162 Used, Pf Cert., Reperforated Left, Xf 90, 2016 Scott Catalog Value: $300.00Hawaii, 18c Kahului Rr, Genuine Used, With Hps Cert. HawaiianMr Fancy Cancel 408 1c Washington Used Superb Plate Number Single Pf CertU.s. #238 Mint Superb W/cert - 1893 15c Columbian ($225)Mr Fancy Cancel 65 Sound Fancy Cancel Unlisted 5 In A Circle Pf Cert Perfect StrCkstamps: Us Stamps Collection Scott#219 1c Franklin Mint Nh Og With Pf CertCkstamps: Us Stamps Collection Scott#221 3c Jackson Mint H Og With Pse Cert U.s. #301 Mint Nh Superb W/cert - 1902 2c Washington ($2,200)Mr Fancy Cancel 114 Sound Fancy Cancel Unlisted Shield Pf Cert Ex-weinberg#504 Used Pse Graded 85, Pse Certificate # 01237732#427 Used Pse Graded 80j With Light Crease, Pse Certificate # 01193832Tdstamps: Us Stamp Scott#337 Mint Nh Og Pf Certificate Cv$105.00Ckstamps: Us Stamps Collection Scott#230 1c Columbian Mint Nh Og Pf CertBep Souvenir Card Ana Midwinter '88 $10,000 Gold Certificate. 1882R27b On 1863 Certificate Of Deposit - Red Hand Stamp Cancel - Onondaga New YorkR27 On Certificate Of Deposit - 1863 - Red Hand Stamp - Onondaga New YorkSouvenir Card Bep Ipms '87 1922 $20 Gold Certificate Numismatic MemphisDrbobstamps Us Scott #418 Mnh Og Xf Centered Gem W/ Pse CertificateCkstamps: Us Stamps Collection Scott#260 50c Jefferson Mint H Og Pse Cert Cv$500Dr Jim Stamps Old Us Revenue Scott R44 25c Certificate Used No ReserveUs Banknote Sc # 189 1879 15c Mint Nh Cat $675 With CertDr Jim Stamps Old Us Revenue Scott R33 10c Certificate Used No ReserveDr Jim Stamps Old Us Revenue Scott R24 5c Certificate Used No ReserveDrbobstamps Us Scott #391 Scarce Sound Mint H Og Lp W/pf Cert. 2017 Scv $2601¢ Wonders ~ Us Bob 10¢ Certificate Pen Cancel - #l493