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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69 Used Pse Cert Graded 85Confederate States Of America, 1863 Loan Certificate..signed On BackNystamps Us Stamp # 124 Mint With Gum H $650 W/cert14 Used Pse Cert Graded 8536b Vf Used Pse Cert17 Used Pse Cert Graded 8086 Used Vf Pf CertU.s. Stamps 1$ Columbian Scarce Jumbo Mint H Vf With Certificate Scv 110072 Used Pse Cert Graded 75137 Vf Used Pse CertMr Fancy Cancel 15l5 D O Bloods Local On Cover To West Chester Cv$800 Weiss CertScott #1a On Cover, 4 Margins W/ Weiss Certificate29 Used Pse Cert Reperfed Bottom And Lower LeftNystamps Us Revenue Stamp # R115b Used $1250 Inverted Center Error W/cert1900 Stock Certificate Dorothy Gold Mining Co. Cripple Creek, Co. 10,000 Shares!Nystamps Us Stamp # 78a Used $425 W/certNystamps Us Stamp # 78b Used $450 W/cert38 Used Pse Cert Graded 75Ckstamps: Us Stamp Collection Scott#63b Regum Cancel Removed With Weiss CertUs Scott# 15 - 10 Cent Washington - Cat $200 - Philatelic Foundation Certificate76a Vf Used Weiss CertNystamps Us Stamp # 262 Mint Og H $2750 W/certUs# 7- 1c Blue- Used- Pse Graded 85- Vf-xf(w Cert)- Big Stamp! Smq Value- $250.-Hawaii, #16, Used, Aps Cert. HawaiianNystamps Us Stamp # 252 Mint Og H $110 W/certNystamps Us Stamp # 97 Used $280 W/certScott 112, Unused, G-grill, 1869, No Gum, Weiss Cert! $2251945 Passed By Naval Censor Envelope #832 & 806 Prexies W/certificate Of ContentScott 158, Mint Continental Banknote, Nh Og, Sound! Pse Cert (b12)! E$400114 Used Pse Cert Reperfed Right1903 Internal Revenue Certificate (bonded Rye Whiskey)+ Distillery Tax Stamps/2 U.s. #366 Scarce Mint W/cert - 15c Ultra On Bluish Paper ($1,250)Bep Souvenir Card Lobex ' 86 $ 10 Gold CertificateDr Jim Stamps Old Us Revenue Scott R8c 2c Certificate Used No ReserveDr Jim Stamps Old Us Revenue Scott R44c 25c Certificate Used No ReserveDr Jim Stamps Old Us Revenue Scott R24b 5c Certificate Used No ReserveDr Jim Stamps Old Us Revenue Scott R33c 10c Certificate Used No Reserve62b 10c Washington Red Grid Cancel - Pf Certificate Pfc $1710 ScvUs Stamp 1862 Scott R24b R3 [5c, Certificate, Og, Genuine] Very Old!!Dr Jim Stamps Old Us Revenue Scott R33 10c Certificate Used No ReserveDr Jim Stamps Old Us Revenue Scott R44 25c Certificate Used No ReserveDr Jim Stamps Old Us Revenue Scott R135 2c Documentary W/certificate Used