Ken Martin
Ken Martin is the Director of Expertizing for the American Philatelic Society. You can learn more about having your stamps authenticated through APEX.
Philatelic Happenings: Lifetime Contributions of Esper Hayes and Dick Winter Honored
Expertizing Profiles: Richard Friedberg
Philatelic Happenings: FLOREX Chair Steps Down
Expertizing - United States beyond Scott
Expertizing Basics - Watermarks
Top Seven Reasons to Expertise your Stamps
Stories from the Expertising Desk: Washington Franklin Transitional Perfs
Stories from the Expertizing Desk
Adventures in Expertizing : What Constitutes a Fault
Expertizing: When and Why
Make Better-informed Buying and Selling Decisions! Enroll Today in Getting the Most Out of the Scott Catalogue
A Season of Difficulty … and Perseverance
Canada Post Raises Awareness with Frog Stamps
New Member Appointed to Citizens’ Stamp Advisory Committee
Scott English, Executive Director
Susanna Mills, Editor in Chief
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