The Knowledge Base

The Blog

History, collecting guides, traditions, and everything you need to know about challenge coins.

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History
The History of Military Challenge Coins

From a WWI flying squadron to the Oval Office, the challenge coin has one of the most fascinating origin stories in military tradition. Discover how a small bronze medallion became a symbol of honour and brotherhood carried by soldiers, presidents, and collectors worldwide.

History & Origins Read Article →
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Collecting Guide
How to Start Collecting Challenge Coins

Building a meaningful challenge coin collection takes more than buying whatever catches your eye. Whether you're a veteran with a box of unit coins or a civilian discovering the hobby, this guide walks you through defining your focus, sourcing authentic coins, storing them properly, and connecting with the community.

Beginner to Advanced Read Article →
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Traditions
Challenge Coin Check Rules and Etiquette

The coin check is one of the most storied traditions in military and collector culture - a ritual that turns a simple medallion into a social bond and a round of drinks. Learn the official rules, variations across different branches and units, and the etiquette that keeps the tradition alive and respected.

Rules & Culture Read Article →
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Special Collections
Presidential Challenge Coins: A Complete Guide

A coin from the President of the United States is considered one of the highest civilian honours a person can receive. But what makes presidential challenge coins so special? How did each commander-in-chief put their own mark on the tradition? And what should collectors know before trying to acquire one?

Presidential History Read Article →
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Collecting Guide
The Most Valuable Challenge Coins

What separates a $15 souvenir from a coin worth hundreds - or thousands? Presidential coins, Special Operations issues, WWII-era pieces, and Secret Service coins can command serious prices. A collector's guide to the categories, conditions, and stories that drive challenge coin value.

Value & Collecting Read Article →
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Collecting Guide
How to Store and Display Challenge Coins

A challenge coin carelessly left in a drawer costs nothing to acquire but plenty to preserve. From air-tight capsules and PVC-free holders to shadow boxes and humidity control - the right way to protect and display your collection, whether you have five coins or five hundred.

Storage & Display Read Article →

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