Littleton Coin Company

Tips & Tools

Omm is not a yoga chant
Overdate & Over Mint Marks

OD isn’t officer of the day and O-M-M isn’t the yoga chant… Overdate and over mint mark are terms collectors use when talking about die varieties. I thought I’d talk a little bit about

Get in on the hottest collecting field –
Modern U.S. Coins

You can’t go back and change the past – but you can think ahead to tomorrow, by building an impressive collection of modern U.S. coins! Right now, modern coins are hot. As someone who’s

The “Weighting” Game
What’s the difference between Troy & Avoirdupois?

Have you heard a coin’s weight being given in “troy ounces” or “avoirdupois ounces” and wondered, “what’s the difference?!” Word HistoryAvoirdupois (pronounced avwa-du-pwah) This word comes from the Old French “aveir de peis,” or

The Keys to your Collection
Those elusive Key dates

Recently Dorothy wrote in to ask why some Roosevelt dimes are worth more than others. That got me thinking about key date, or better date coins and the impact they have on your collection.