Articles & Research

Identifying and Collecting Fakes and Forgeries

Powerpoint from presentation given at APS Stamp Show, 2018 - By Mike Farrell, Casey Jo White, and Pasqui Boussery. [DOWNLOAD PDF]

Chronological Database of Blood’s Stamp Usage on Cover

By Vernon R. Morris, Jr. MD © 2013-17 [CLICK HERE]

Hale & Co. Foreign Letter Mail & Domestic Independent Mail 1838-1845

A presentation by David Snow © 2013 [DOWNLOAD PDF]

Collecting Carrier and Locals Stamps

An introduction for the interested collector by John D. Bowman © 2010 [DOWNLOAD PDF]

A Primer on Boyd’s City Express Post

By John D. Bowman © 2009 [DOWNLOAD PDF]

Collecting US Locals

By Calvet M. Hahn © 2002 [DOWNLOAD PDF]

The Early Development of Carrier Service in America, with Particular Emphasis on Service in New York Before 1850

By Calvet M. Hahn [DOWNLOAD PDF]

Detecting Carrier Serviced Covers in the Fee Paid Period: A Primer

By Steven M. Roth. Originally published in the Chronicle, Vol. 47, No. 4. November, 1995. [DOWNLOAD PDF]

Adam’s Express and Independent Mail

By Calvet M. Hahn © 1990 [DOWNLOAD PDF]

John Bouton’s Posts

By Calvet M. Hahn © 1973, published in The Chronicle, Oct. 1973 [DOWNLOAD PDF]

Helpful Research Links

Plate Position Studies

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