Summer Seminar Banner

Discover PSU Sign Up

Summer Seminar

Summer Seminar on Philately is a once-a-year opportunity to expand your philatelic knowledge and meet others who share your passion and interests. All courses are led by philatelic experts who are accomplished writers, exhibitors, experts, dealers, and specialized collectors.


June 21-25, 2020


Early Bird Registration runs until March 31st.

Questions or Comments?:

Call: 814-933-3810 or Email:

Postmark from the first field-tested postmarking machine

The Evolution of Experimental and Early Machines and Their Postmarks Worldwide: 1850s-1920s

A 2-Day Course Presented by Jerry Miller

Wednesday, June 24 – Thursday, June 25, 2020

Why did postmark automation become a necessity and how did it evolve over time?

Course Description:

Soon after the introduction of prepaid postage and use of the first adhesive postage stamp, postal authorities recognized the need for improvement in the handling of the mail.  There are both obvious and obscure reasons to investigate.
Expand your knowledge of the history and evolution of the experimental and early postmarking machines.  Discover forerunner devices.  Explore pioneer mechanical machines, early rapid postmarking machines, and high speed flexible machines.  Review postmarking trials.  Learn identification, collecting, and exhibiting guidelines.
Don’t miss this opportunity to experience the story behind the evolution of postmarking machines.

***  This course will not cover modern postmarking, sorting, or other postal automation machinery.


Intended Audience:

Postal historians, country specialists of England, Germany, Canada, and U.S. and dealers in postal history will find this course to be quite informative
Attendees need not have prior knowledge of machine postmarks, postmarking machinery, engineering or a technical background.

Meet the Instructor

Jerry Miller

Jerry H. Miller, a native of Chicago, is a former Vice President of the Germany Philatelic Society and the author of more than fifty philatelic articles, including the international-gold medal winning standard reference hand¬book on German classical experimental machine postmarks, “From Hinrichson to Krag: The Experimental and Early Machine Postmarks of Germany (1866–1906)”. He has been an APS & Germany Philatelic Society judge (now chief judge) for over 20 years and is a renowned exhibitor who has earned nine grand awards. Additionally, Miller is the recipient of the prestigious Newbury Award of the Chicago Philatelic Society and Silver Chalice Cup Award of the Great Britain Philatelic Society, Board secretary emeritus Collectors Club of Chicago, and Director Emeritus of Exhibit Critique Service for the American Association of Philatelic Exhibitors. Jerry is uniquely qualified as a presenter having been a collector and exhibitor of worldwide machine postmarks for over 40 years.

There are 7 spaces left in this course

Course Listing

4-Day Courses Monday-Thursday (June 22-25)

Important Information

Distinguished Philatelist

Distinguished Philatelist Dennis Gilson

The Summer Seminar Distinguished Philatelist award recognizes an individual who has demonstrated dedication, leadership, and commitment to the hobby. 

Dennis has been a member of the American Philatelic Society since January 1977 and received the 2016 Luff Award and the Century Award Plaque. He is a member of the APEX Expert committee, volunteers regularly at the APC and is an esteemed Summer Seminar Instructor.

Engage with us