Tom Horn
Tom Horn served as the Director of Expertizing at the APS until June 2019. He continues to volunteer in the Expertizing department, frequently assisting with the Reference Collection.
Scrutinizing This 1-cent Stamp Can Pay Big Dividends
Expertizing Remains a Vital Service of the APS
Color: Varieties, Changelings and Manipulations
Attention to Detail: Little Things Mean a Lot
Canada Post Pays Tribute to French-Canadian Authors
Scott English, Executive Director
Susanna Mills, Editor in Chief
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