Maktun dominates international coin identification with 300,000 coins, 160,000 banknotes, and 15,000 tokens from worldwide ...

People may be inspired to collect coins after all the recent discussion on pennies, long-time collectors said.

Dollar Legend The 1894-S Barber dime stands as one of the rarest United States coins ever produced, with only 24 proof coins ...

Abstract: Efficient fiber-to-chip coupling is crucial for achieving high-performance silicon photonic chips. While lensed fiber to chip coupling has been extensively researched and proven excellent, ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...

Have you ever stumbled upon an old coin and wondered, “Is this worth anything?” You’re not alone! Thanks to modern technology ...

It all depends on which type of quarter you use. If it’s a Wisconsin state quarter issued in 2004, it could be worth at least $30 — and maybe much more. The vast majority of 2004 Wisconsin quarters ...

Archaeologists excavating the remains of Guanzhuang—an ancient city in China’s eastern Henan Province—have discovered what they believe is the oldest-known coin mint, where miniature, shovel-shaped ...

The best coin identifier app free for you depends on your specific needs. For most collectors, we recommend starting with ...

Searching for the 9 best coin identifier app free options to discover your coins' true worth? Today's AI-powered coin ...

CoinKnow is our top recommended coin identifier that uses AI technology to identify coins through photos and is one of only ...

This guide breaks down the best free coin identifier apps for U.S. and international coins, accuracy, error detection, and who each app is really for.