⚖3¢ Stamp Exchange - Buy, Sell, Trade

An information hub connecting platers who want to buy, sell, or trade their 3¢ stamps directly with each other. Post your want lists and available duplicates, then connect privately with fellow collectors to arrange trades or sales. This site facilitates introductions and information only—all transactions occur independently between collectors. Limited to the 3¢ U.S. Imperforate issue.

Getting Started

• Apply to join the exchange (admin approval required)
• Upload stamps you want to sell or trade
• Connect directly via email to do your business

🎨Chase Color Identification System

Carroll Chase's pioneering color classification system for the 3¢ U.S. Imperforate stamp. Essential reference for identifying color varieties and understanding the range of shades found in this issue.

Resource Contents

• Comprehensive color charts and examples
• Chase's original classification methodology
• High-resolution color comparison images
• Historical context and development
• Color variety identification guide

📊DeVere Card Plating System

DeVere A. Card's comprehensive plating charts showing relief characteristics and distinguishing features. An invaluable tool for identifying stamp positions through systematic visual comparison.

Chart Collections

• Complete plate-by-plate visual diagrams
• Relief characteristic illustrations
• Position identification keys
• Comparative analysis charts
• Historical plating correspondence

📕Dr. Carroll Chase - The 3¢ Stamp of the United States 1851-1857 Issue

The definitive reference work: "The 3¢ Stamp of the United States 1851-1857 Issue" by Carroll Chase and the Philatelic Foundation. The cornerstone of all serious 3¢ plating research, containing comprehensive plate reconstructions, relief studies, and historical analysis.

Book Contents

• Complete plate reconstructions
• Detailed relief characteristic studies
• Historical research and analysis
• Position-by-position documentation
• Foundational plating methodology

📖Research Papers & Articles

Scholarly publications, plating databases, and technical documentation on relief characteristics, recuts, guide dots, and other plating features.

Document Categories

• Comprehensive plating databases
• Relief characteristic studies
• Recut analysis and catalogs
• Technical methodologies
• Historical correspondence

🏛Organizations & Resources

Links to philatelic societies, research libraries, and museums that support and preserve the study of classic United States stamps.

Partner Organizations

• U.S. Philatelic Classics Society (USPCS)
• American Philatelic Research Library (APRL)
• Smithsonian National Postal Museum
• Specialized philatelic associations

👍Acknowledgments

Gratitude to the philatelists, researchers, and organizations whose work forms the foundation of this study.

Contributors

• Robin Lund – Original plating research
• Carroll Chase – Pioneering classification work
• Dick Celler – Research and scholarship
• Robert J. Lampert – Expert consultation
• Gary Schrader – Expert consultation
• E.L. Fritz – Expert consultation
• U.S. Philatelic Classics Society – Resources and support

👤About Me