Show Time Calendar

Our searchable calendar below contains APS sponsored events, National WSP shows, International shows, Bourse only shows, etc. 

Tips:  We invite you to scroll through the calendar of events for each month, or search by state or by zip code to find an event in your area.  Click on any show name to view additional details about each event.

Interested in Advertising your Event? Read more....

Adding EFOs to Your Collection: Session One

May 4, 2021


American Philatelic Society


Virtual Course via C3a




7:30 p.m. – 8:45 p.m. Eastern Time

Cost:  $25 APS Members/$50 Non-Member

Instructor: Cemil Betanov

Why should I include EFOs in my collection?  What are EFOs anyway?

During this introductory course, you will; discuss reasons for including Errors, Freaks, and Oddities (EFOs) in your collection, explore different types of EFOs, identify where get additional information, and acquire tips for obtaining these production miscues.

Session 1 (May 4, 2021) – What are Errors, Freaks and Oddities (EFOs)?  Why should you add EFOs to your collection?  Overview of major types of EFOs.

Session 2 (May 11, 2021) – An overview of errors, freaks & oddities by category

Session 3 (May 18, 2021) – Where to find EFO-related information.  Tips for acquiring EFOs.


To Advertise your Upcoming Event

As a service to APS chapters, affiliates, and our members, the APS publishes contact information for upcoming stamp shows. The listings are provided both on our website and on a space available basis in The American Philatelist. The listings are free to World Series of Philately and other shows that are sponsored by an APS chapter or affiliate. Shows that are not sponsored by APS chapters or affiliates may purchase listings for the month of the show and the month prior. Paid listings cost $25 per show per month


Questions or Event Corrections:

Contact or call 814-933-3812.


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