Cart Summary

Your shopping cart is empty.
Product Qty Amount

Adding EFOs to Your Collection: A Three-Session On-Demand Course

Become an APS member and enjoy up to 50% off the cost of content on the C3a Learning Platform

To join the American Philatelic Society, go to:  https://stamps.org/join-now

About this Course:

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 – What are Errors, Freaks and Oddities (EFOs)?  Why should you add EFOs to your collection?  Overview of major types of EFOs.
  • Session 2 – An overview of errors, freaks & oddities by category.
  • Session 3 – Where to find EFO-related information. Tips for acquiring EFOs.

This three-session seminar was recorded in May 2021.

Cost: $25 for APS Members/$50 for Non-Members

Instructor: Cemil Betanov