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What we do

Mullen Coins is in business to help you realize a fair value when you buy and sell your coins and currency. Many of our customers first ask us to evaluate their collections. There is no charge for an evaluation.

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Latest Blogs Posts

How to Detect Counterfeits
As a Grand Rapids coin dealer, we at Mullen Coins have an especially strong interest in the detection of counterfeit and altered coins. In point of fact, anyone who deals with rare coins will develop a basic understanding of how to detect counterfeits, whether out of interest or necessity. If you are considering purchasing a rare date coin, or if you are looking to sell your coins, you may need to pay special attention to authenticity. Below are some generally effective ways to detect counter...
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