We Buy & Sell Coins, Stamps & Precious Metals

Rockville, MD - Coins, Stamps, and Precious Metals


  • All United States and Worldwide Coins
  • Gold Coin Specialists
  • Silver Dollars, Early Type Coins, Commoratives
  • Proof Sets, Mint Sets, Tokens, Medals
  • Singles, Complete Sets, Rolls, Accumulations


  • All United States and Worldwide Stamps
  • Mint Sheets, Plates Blocks, Singles
  • First Day and Commercial Covers
  • Duck Stamps and All Revenue Stamps
  • Confederate Stamps and Covers, Postal History

Precious Metals

Precious Metals
  • Gold, Silver, Platinum, and Palladium
  • 40% and 90% Silver Bags
  • All United States and Worldwide Coins (Eagles, Maple Leafs, Krugerrands, Philharmonics, Sovereigns, Etc.)
  • 9K, 10K, 14K, Dental, 18K, 22K, and 24K Jewelry
  • 1 oz., 10 oz., 100 oz., 1000 oz., and kilo bars.
  • Sterling Silver—Flatware, Hollowware, Ingots, Medals


Diamonds & Jewelry
  • Diamonds and Diamond Jewelry
  • 9K, 10K, 14K, Dental, 18K, 22K, and 24K Jewelry
  • Estate and Newly Manufactured Jewelry
  • Wedding and Engagement Rings
  • Pearls, Gemstones, and Sterling Silver

Paper Money

Paper Money
  • All United States and Worldwide Currency
  • Small Size, Large Size, Fractional, MCPs
  • National Currency from Any Bank
  • Confederate, Colonial, Broken Banks
  • Singles, Packs, Uncut Sheets, Collections


  • Any United States or Worldwide Historically Significant Autograph
  • Famous Artists or Musicians
  • Famous Political Figures
  • Famous Athletes and Actors
  • Signatures, Signed Photos, Documents, Etc.

Contact Us Today

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Why Choose Coins of the Realm, Inc.?

  • Free storefront parking providing easy access.
  • Established in 1974 and still under original ownership and management providing decades of expertise in all aspects of buying and selling.
  • Financial Security – Since opening in April of 1974 every transaction of every size has been completed successfully without issue. Bank references available.
  • We provide accurate information in a professional no pressure environment allowing you to make sound decisions to sell, keep or buy collectibles and precious metals.