General Precancel Info:
- Early Use and Approbation of Precancels in the U.S. Postal System – How it all started
- Precancel Device Manufacturers – History of the contracts in producing devices
- Government Precancel Styles – Details into the Government styles & their manufacture
- Hand Electros – 25 Years of Precancel History
- Precancel Mounting – How to NOT do it
- Don’t Apologize for Precancels – In praise of precancel collecting
Bureau Precancel Info:
- Development of the Bureau Precancel - The story of the start of bureaus
- The Kansas City Perf. 11 x 11 – Identifying these issues
Dated Precancel Info:
- The “First” Dated Precancel
- Sears, Roebuck and Company – Basics on dateds from this prolific user of precancels