Superior Court of California Approved Expert Coin Appraiser. PCGS Coin & NGC Coins


  • We are a BBB Accedited Coin Appraiser, Preferred by Attorneys, Courts and Trusts!

  • Past Grader for PCGS

  • 38 years in Business

  • In home Appointments available

  • By Appointment Only!

  • We Buy Larger Coin Collections

Morgan Dollars



Gold Coins

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Some Great Coins

Need a PCGS Coin Buyer?

Markham numismatics is a BBB Accredited PCGS coin Appraiser , we provide expert coin appraisals on PCGS coins and NGC coins. With 38 years knowledge and  as past grader for PCGS we have unsurpassed knowledge in coin grading and coin values. other dealers have only general knowledge .. we have specialized  Knowledge of  Numismatic coins. even the SEC has requested our coin appraisal expertise ! which makes us the Smart Place to sell your coins .

When it’s time to liquidate your PCGS coins or NGC coins, make sure you deal with a numismatist with 38 years of coin buying and selling of PCGS and NGC coins.

We can purchase your coins instantly! No waiting . We make selling your coins a worry free experience. We also buy ungraded coins as 95% of old coins don’t require the cost of professional grading. So those old silver dollars, all U.S. gold coins, all coin collection can be bought . we specialize in shipwreck $20 Liberty Gold coins .  brother Jonathan , s.s.srepublic,  s.s. Central America .

Don’t take your coins to the gold buying stores! Many are staffed with people with no knowledge of coins . That’s like taking your vintage car to the scrap yard to sell it, and you wouldn’t do that right ? Lol

Please call us for an appointment so we can bring liquidity to those coins.  You will soon find out why we have thousands of happy customers.    we have offices in Riverside 951.686.2122 – Palm Desert 760-904-6016 -Diamond Bar 909.378.4745  and Rancho Bernardo,ca 1-858-207-8886  please call for an appointment.  or better yet  email us questions/ photos   via the contact page on the website . 

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If you need a coin collection appraised or Liquidated  Give us a Call or Email us .
We can set an Appointment !