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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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» See all US stamps with certs Show & Tells

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Like many collectors, I collected when I was a child, and then I became interested again in the ‘90s. I think eBay and other Inter… [more]

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Clubs & Associations: Stamps

Top eBay Auctions

See all 46 by  highest bid • most watched • completed
Philippines, #c63, Violet Victory Ovpt.,mint W/cert., Cat. 3,750.00United States Scott #523 Mnh $1200 Cv With Aps CertificateUs Stamp:#118 15c Landing 1869 Pirctorial Unused $3,500 + CertificatePse Graded Stamps Full Sheet Scott # 634 Ognh Electric Eye Plate With CertMr Fancy Cancel 292 $1 Transmississippi Expo Mh Cv$1050 Weiss Cert Vf Appear#1 1847 5c Franklin Stamp Used By Blue Town Cancel - Four Margins & Pf Cert. 208a Og Nh Nice Stamp Weiss Cert. Cv $1,800. No Reserve!U.s. #1 Used Beauty W/cert - 5c Red Brown449 Used Genuine! Weiss Cert. Cv $600. No Reserve!Ckstamps: Us Newspaper Stamps Scott#pr76 $24 Dark Violet 1879 M/h Og $800 W/cert413 Og Nh Pair Weiss Cert. Cv $250. No Reserve!Mr Fancy Cancel Csa 11 May 16 Csa 12 May 19 Cover Forwarded Pf Cert Scarce UsageCanal Zone #2 With Aps Cert.387 Og Nh Genuine! Weiss Cert. Cv $400. No Reserve!Hawaii, #6, Unused, W/cert, Primo Item. Scarce Hawaiian386 Og Nh Genuine! Weiss Cert. Cv $280. No Reserve!/p02 Usa 1869 Scott#118 Used Cv:$775 With Certificate Bill WeissUs Scott #327, Ogph, 2010 Ungraded Pf Certificate, Scv $145Scarce Used Interest Paid $10 Series Of 1939 Postal Savings CertificateUs Scott # 7 1c Franklin-m W Cert-og-nh- F/vf-cv$ 1,100.00!!!Us Scott #85,3c Rose,"d" Grill, 13x14mm Rare (paid) "all", W/certificate, Ckstamps: Us Stamps Scott#88 3c Rose E-grill 1868 Mint Nh Og $1,000 W/copy Cert.Sc# 337 Fine+ Nh W/2012 Pf Cert.Ck Stamps: Us Stamp Collection Scott#461 2c 1915 Mint Lh Og Cert Cv$140U.s. #24 Mint Beauty W/cert - 1c Blue, Ty V ($140)Hawaii, #23, Unused, W/psag Cert. Scarce HawaiianUs Scott No.76 With Aps Certificate-scott Value $130.00!Mr Fancy Cancel 158 Pair +(2) Cover Cole Nyfm-28 Weiss St-mp3 Pf Cert Ex-kirkeUs Scott #619, Ognh, 2007 Graded (85) Pse Certificate, Scv $32#1 1847 5c Franklin Stamp Used On Printed Notice - Boston To Nh - 2010 Pf Cert.#1 1847 5c Franklin Stamps Used On Cover From Boston To Ny - 2010 Pf CertificateUs Stamp:#917a Overrun Countries-​flags-reverse Error Mhog+certificate CopyScott C46 80 Cent Airmail 1952 Pse Certificate Graded Superb 98, Mint DogScott #119 Landing Of Columbus 15446 Og Nh Genuine! Weiss Cert. Cv $700. No Reserve!U.s. #11 Brownish Carmine W/pf CertificateScott #330 Vf Mint 1907 Jamestown Certificate Cv $130.00Scott #72 90c Washington 1861 Mint/hinged+cert No Hidden Flaws Or Short PerfsCivil War Revenue Tax Stamps R27 On 1866 Oh Marriage Certificate: Haines -miller5 Back Of Book 10 Cent 2 Certificate, Bill Of Lading, Interchange, Power Of Atty41 Certificate Of Deposite First Nat.bank Of BainbridgeUs Revenue Stamps, Lot Of 15, Ten Cent, Certificate, Stamp And Hand CancelScott 629 2 Cent Sesquicentennial Pse Cert Grade Xf 90, Mint Original Gum NhScott 690 2 Cent Pulaski Pse Certificate Graded Xf 90, Mint Og Never Hinged11002 - Dr Jim Old Us Bob Revenue Stamp Scott R33c Certificate 1862-71 Used NrCkstamps : Us Newspaper Stamps Scott#pr92 4c 1894 Mint Nh Og $1,400 W/ Pf Cert.
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