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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Clubs & Associations

Most watched eBay auctions    

Noblespirit No Reserve 4148 Us 218d Mngai Pl No.7 Blk Of 6 W/ Pf Cert 1/60 KnownNoblespirit No Reserve 4148/12 Us B.o.b. Air Mail No.c5 Mnh W/cert =$130U.s. #15 Used W/cert - 10c Green, Type Iii ($160)Us #262 Unused, Aps CertUs #261a Used, Pf CertU.s. #118 Scarce Used W/cert - 1869 15c Brown & Blue ($800)Us #379 Mint Never Hinged Xf Jumbo -- Beautiful! (pse 90j Graded Cert)Us 30c Perf 15 1857-61 Sc 38 H Cat Value $2150 With CertTks Stamps:!rare! Us Scott 579, W/pf Cert, Mnh, 1923 Coil Waste P 11 X 10Nystamps G Mint Nh Old Us Bob Duck Stamp Collection Pse CertificateU.s. #1 Used Beauty W/cert - 1847 5c Red Brown ($400)U.s. #70b Scarce Used W/cert - 24c Steel Blue ($850)Us #276 Mint Previously Hinged, Pf Cert#23 Dec 22 Red Boston Postmark W Black Circular Grid "paid" Cancel Cover W/ CertUs #278 Used, Pf CertUs Used 1863 Black Jack Sc#73 With Pse Certificate. Grade Vf 80Ckstamps: Us Postage Due Stamp Collection Scott#j54 3c Mint H Og Pse Cert $1050#7 Strip Of 3, 11a On Cover North Yarmouth Maine Me Cancel + CertCkstamps: Us Postage Due Stamp Collection Scott#j59 1c Mint H Og Pse Cert $4000Nystamps Us Stamp # 917a Used Certificate U.s. #154 Rare Unused W/cert - 30c Black ($2,750)Ckstamps:us Special Delivery Stamp Collection Scott#e4 10c Mint Og With Pse CertCkstamps: Us Postage Due Stamp Collection Scott#j36 30c Mint H Og Aps Cert $5501861 #65 Rose, Used On Cover With Certificate And LetterUs Stamp:#1887 Ohio Railroad Company 100 Shares Stock Certificate BondSalem Railroad Of Nj 1863 Civil War Era Stock Certificate W/ R48a Revenue StampCkstamps: Us Official Stamp Collection Scott#o86 6c Unused Ng Pse Cert Cv$250Hawaii 1864-1865 #19 Unused W/ 2 Certs Incl. 1930 Rps Cert [id:9418] Ckstamps: Us Official Stamp Collection Scott#o107 6c Mint H Og Pse Cert Cv$475Ckstamps: Us Official Stamp Collection Scott#o101 12c Mint H Og Pse Cert Cv$230Us #270 Mint Never Hinged, Pse CertCkstamps: Us Postage Due Stamp Collection Scott#j43 30c Mint H Og Pse Cert $600Ckstamps: Us Stamp Collection Scott#500 2c Washington Used Pf Cert Cv$2401983 Official Mail Cert. , Ret. Rct.Ckstamps: Us Official Stamp Collection Scott#o102 15c Unused Regum Pse CertU.s. #63 Used Beauty W/cert - 1c Blue ($50)#490 Used Line Strip Of 3 Cover With Certificate1¢ Wonders - Us Bob Revenue 10¢ Certificate #r33 Used #a734U.s. #24 Mint Beauty W/cert - 1c Blue ($140)U. S. Post Office Department Certificate Of Deposit - Transfer Of Funds - 19221875 Scott Usa 1c Carrier Eagle Lo6 Blue Perf 12 Avg-fn 3 Margins W/sel Aps Cert