top of page
stamp collection editedv2.jpg

Welcome to

Philatelic Stamp Authentication and Grading

PSAG EXPERTIZES STAMPS FROM:
UNITED STATES
CANADA
CANADIAN PROVINCES
CANAL ZONE
HAWAII
ABOUT PSAG, Inc.

PSAG is a stamp authentication and grading company specializing in United States and Canada. With decades of experience, PSAG experts are drawn from the best in philately.  We will be posting articles by noted authorities, streaming tutorial videos, interesting and helpful facts about our hobby, links to clubs and societies and much more.  PSAG is taking Stamp Authentication and Grading to the next level.

​

Philatelic Stamp Authentication and Grading, Inc., was formed in early 2009 by noted U.S. Classics Expert, J. Randall Shoemaker. With his 45 years experience in professional expertizing and grading and being the Founder of PSE, his experience in this field is vast. Under his guidance, PSAG has put together a most impressive committee of Experts, technology and innovation. It is our goal to provide you with the highest level of expertise, customer service, responsiveness and value for your expertizing dollar. This website will be continually evolving into an interactive site that will display information historically unavailable to most collectors. Please return regularly and see how we can further serve you.

PSAG Coupon.jpg
NEW CUSTOMERS!

Sign up for our email list and receive an instant coupon for one free certificate (worth up to $35) with one paid submission!

​

 

 

 

 

 

Coupon will be emailed to the address provided, and must be printed and included with submission to redeem.

Randy Shoemaker on Discovery Channel's Auction Kings
Grading Singles, Pairs, Plate Blocks, Booklet Panes and Souvenir Sheets for US & BNA
EXPERTIZING

Expertizing and authentication is very important in todays stamp market with many stamps worth significant value. Collectors who spend more than $50 per stamp are considered advanced and can amass a valuable collection over time. As they add scarce and expensive items, it is important to be sure you are getting full value for your collecting dollar...

GRADING

The use of grading terms to describe the relative quality of a stamp has been going on since the very beginning of stamp collecting in the mid to late 1800’s. Beginning in 1987, a system was developed to finally begin standardizing the terminology and numerical grading of postage stamps. The system was built on the generally accepted...

PHOTO GRADING GUIDE

Our unique photo grading guide is the best way to visually learn the ins and outs of stamp grading. The following stamp images and their associated relative centering grade are to show, in visual terms, what is meant by each grade. Faults and their affect on the overall GRADE are NOT factored into the examples below...

OUR PARTNERS
AMERICAN PHILATELIC SOCIETY
100 Match Factory Place
Bellefonte, PA 16823
​
Email
Visit Their Site
CONFEDERATE STAMP ALLIANCE
10194 N. Old State Road
Lincoln, DE 19960-9797
​
Email
Visit Their Site
BNAPS
AMERICAN REVENUE ASSOCIATION
PO Box 728
Leesport, PA 19533
​
Email
Visit Their Site
AMERICAN STAMP DEALERS ASSOCIATION
PO Box 513
Centre Hall, PA 16828
​
Email
Visit Their Site
ERRORS, FREAKS & ODDITIES COLLECTORS CLUB
955 S. Grover Blvd., #65
Kingsland, GA 31548-5263
​
Email
Visit Their Site
THE NATIONAL STAMP DEALERS' ASSOCIATION
MIDWEST STAMP DEALERS' ASSOCIATION (MSDA)
NATIONAL DUCK STAMP COLLECTORS SOCIETY
PO Box 43
Harleysville, PA 19438
​
Email
Visit Their Site
FLORIDA STAMP DEALERS ASSOCIATION
INTERNET PHILATELIC DEALERS ASSOCIATION
CARRIERS AND LOCALS SOCIETY

 P.O. Box 6634
Katy, TX 77491-6634


Email
Visit Their Site
U.S. PHILATELIC CLASSICS SOCIETY
2913 Fulton
Everett, WA 98201
​
Email
Visit Their Site
UNITED STATES POSSESSIONS PHILATELIC SOCIETY, USPPS
Screen Shot 2020-04-13 at 2.55.07 PM.png
CALL US
EMAIL US
SUBMIT

PSAG, Inc.

PO Box 410880

Melbourne, FL 32941

FEDERAL EXPRESS

Attention:  PSAG, Inc.

3960 Dow Road

Melbourne, FL  32934

​

bottom of page