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

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Ckstamps: Us Stamps Scott#241 $1 Columbian 1893 Unused Rg 2014 Cv$1100/og W/certUs Stamps #243, Us 1893, Columbian $3. Mint Og-lh Xf With P.s.e Certificate Drbobstamps Us Confederate Scott #csa9 Mint Scarce Stamp With Pf CertificateUs Stamp:#503 4c Brown 1917-19 11p. Flat Plate Mnh Pse Certificate Xf-superbDrbobstamps Us Scott #64 Used Scarce Stamp With Pf CertificateCkstamps: Us Stamp Collection Scott#35 Mint H Og With Pf Cert Us Stamp:#591 10c Orange 1923-26 10p. Mnh/og Stamp + Certificate Ckstamps: Us Postage Due Stamp Collection Scott#j60 Mint Nh Og With Weiss CertUs Stamp:#369 2c Carmine 1909 Lincoln "bluish Paper" Mh/og Stamp + CertificateU.s. Scott #102 Unused 1c Franklin Blue With Certificate Estate Found CollectionDrbobstamps Us Scott #lo2 Used Scarce Stamp With Pse CertificateU.s. Scott #578 Unused Franklin 1c Og Nh W Certificate Estate Found CollectionCkstamps: Us Stamp Collection Scott#163 15c Used Huge Margins With Pf CertCsa #4 Used, Big Margins, Sound, Spur Variety Cert1865 Eastern Shore Railroad Stock Certificate W 1st Issue 20 & 5 Cent Rev StampsDrbobstamps Us Scott #86 Used Scarce Sound Stamp With Clean Pf CertificateCkstamps: Us Stamp Collection Scott#352 Mint Nh Og Line Pair With Wess CertScott 423 1912 $1 Franklin Regular Issue Pse Certificate Mh Og F-vf Cat $325!U.s. Scott #524 Unused $5 Vf/xf Og Lh W Certificate Estate Found CollectionScott 9 1852 1Us Scott #11a..w/ Cert Weiss....exp. Brown Orange Var.#907 Mint Nh 1943 Victory Pse Certificate Graded Superb 98Us Postmasters Provisionals Stamp 1846 Imperf Mng W/aps Cert | CounterfeitUs Scott # 740 Pse Certificate Graded 98 Mint Nh Farley National Parks YosemiteVintage United States War Savings 5 Dollar Certificate Stamp 1918 1923Ckstamps: Us Stamp Collection Scott#323 Mint H Og Grade 90 With Pse CertCkstamps: Us Stamp Collection Scott#64 Washington Used On Cover With Weiss Cert#719 Mint Nh 1932 Olympics Pse Certificate Graded Xf-superb 95Mr Fancy Cancel 357 Bad Cert 1st Use Now 2-21-09 Mt Vernon Va Card #3627Mr Fancy Cancel 374a Bad Cert 1st Use Now 2-28-11 Goats Hopi Village Card #3625Ana 1981 Souvenir Card "$1 Silver Certificate" Washington DcU.s. Certificate Of Mailing, Form 3817, 15c Meter Stamp, Postmarked 12/9/78-usedDs Us Revenues Stamp Collection R24a 5 Cent Red Certificate Imperf Used Ds Us Stamp Revenues Collection Scott# R24c 5 Cent Red Certificate Used 572 $2 U.s. Capitol Mint Original Gum Nh Superb Stunning Aps Certificate#rw57 Mnh Pse Enacpsulated, Certificate # 01198228#1010 Mint Nh 1952 Lafayette Pse Certificate Graded Superb 985Mr Fancy Cancel 383v Bad Cert 1st Use Now 3-24-11 Stamp Hinged Easter Card #3623Ana 1982 Souvenir Card "$2 Silver Certificate" New Orleans LouisianaMr Fancy Cancel 374 Bad Cert 1st Use Now 12-31-10 Valentines Day Card #3626Mr Fancy Cancel 488 Bad Cert 1st Use No Longer 1st Use 1919 Cvr #3624Mr Fancy Cancel 378 Bad Cert 1st Use Now 2-14-11 Stamp Hinged Cvr #3628Dr Jim Stamps Old Us Revenue Scott R7 2c Certificate Used No Reserve#r44c 25 Cent Certificate Revenue Stamp Used AU.s. Certificate Of Mailing, Form 3817, Postmarked Northridge, Ca 12/10/77-usedR24c 5R33c 10R33c 10R44c 25Dr Jim Stamps Old Us Revenue Scott R8 2c Certificate Used No ReserveDs Us Stamp Revenues Collection Scott# R24c 5 Cent Red Certificate UsedDs Us Stamp Revenues Collection Scott# R44b 25 Cent Red Certificate Used Dr Jim Stamps Old Us Revenue Scott R24 5c Certificate Used No ReserveDs Us Stamp Revenues Collection Scott# R44c 25 Cent Red Certificate Used Dr Jim Stamps Old Us Revenue Scott R33 10c Certificate Used No Reserve