About the Author

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Margaret Olsen, ASA

Accredited Senior Appraiser
Personal Property

President, Westminster Appraisal & Consultation, Ms. Olsen has been an appraiser for more than 35 years. Her American Society of Appraisers designations are Personal Property-Sports Collectibles and Memorabilia and Numismatics (coins and currency).  Ms. Olsen is a guest Speaker, Author, University Instructor, Appraiser and expert witness.  A recognized authority on Personal Property, she is often called upon for estate, charitable contribution, Insurance, distribution, claims and IRS appraisals.

She has been seen on PBS, heard on radio stations, quoted in USA Today, The Washington Post, Associated Press, Smart Money, Investor’s Business Daily, The Chicago Tribune and numerous other publications. She has published articles about the appraisal profession, sports memorabilia, sports appraisals, precious metals and coins and co-authored “The Gold Book, A Guide to Commonly Traded Gold Bullion Coins and Bars”, “The Platinum and Palladium Buyer’s Guide” ” and a new e-book, “The Gold Book: What’s It Worth”.

Ms. Olsen has been a University Instructor, Advisor and Consultant for Personal Property Principles of Valuation, Connoisseurship and Professional Development Courses at The University of California at Irvine (UCI), Northwestern University (NWU), George Washington University (GWU), The University of Missouri at Kansas City (UMKC), Pratt Institute, The University of Missouri at Columbia (UMC), University of Georgia (UGA), University of Tennessee-Knoxville (UTK), and Rhode Island School of Design (RISD), an Education Consultant to UCI, a member of the UCI Advisory Committee and the recipient of the Distinguished Instructor Award from UCI. Olsen is a graduate of Northern Illinois University.

American Society of Appraisers – Courses Completed

  • Uniform Standards of Professional Appraisal Practice, 1989, 1994, 1999, 2004, 2009, 2012, 2013
  • Senior Member Re-accreditation, 1985, 1990, 1994, 1999, 2004, 2009
  • Principles of Valuation, PP/GJ 201-204
  • Fine & Decorative Arts Principles Course, FD207

Courses, Symposiums and Seminars Completed

  • IRS Rules and Regulations: Report Writing, 1999, 2006, 2008, 2009, 2010
  • Succeeding as an Expert Witness, Denver, Colorado, 1995
  • Getting Value from Your Appraiser: A Lawyer’s Guide, Colorado 1998
  • Legal Environment of Appraisal, Denver, Colorado 1999
  • Personal Property Insurance—Damage & Loss, Irvine, CA 2001
  • Art and Cultural Property:  Provenance; Due Diligence; Legal and Ethical Issues, 2002
  • Handwriting Analysis, Front Range Community College, 1986
  • UCI: Silver and Gold 2010, UCI
  • Signs and Symbols, 2008

Appraisal courses developed and taught

  • Insurance, Appraisers, and the Law
  • Appraisers Toolkit: Fakes, Frauds, & Reproductions
  • Silver, From the Ground Up
  • The Business of Appraising
  • Charitable Contributions—Do’s & Don’ts
  • Charitable Contributions & Estate Tax: Are You Qualified
  • Coins, Currency & Precious Metals:  The Meaning of Money
  • Finding Treasure
  • Introduction to Personal Property Valuation
  • Personal Property Valuation Methodology—Research and Analysis
  • Personal Property Valuation—Report Writing
  • Personal Property Valuation—Advanced Report Writing, Report Writing Update & Review
  • Silver Detective – Sterling, Plate or Pure
  • The Meaning of Money, Coins, Currency and Precious Metals
  • Turning Gold and Silver into Green


American Society of Appraisers, Accredited Senior Appraiser, Personal Property

International Board of Examiners, Personal Property Committee

  • Personal Property – Distance Education Coordinator, Education Chair,
  • International Education Advisor
  • Denver Chapter – President, Vice President, Treasurer
  • American Numismatic Association Life Member 1684, ICTA, PCGS, NGC
  • Canadian Numismatic Association Life Member 241
  • Baseball Hall of Fame – Individual Member
  • Manuscript Society


Ms. Olsen is a frequent guest speaker.  A recognized authority on Personal Property, sports and coins, she is often called upon for appraisal and consultation related to insurance coverage, insurance claims, purchases and sales, expert witness consultation, litigation support, charitable contribution, divorce, estate and tax consultation.  Ms. Olsen has worked with many museums, insurance companies, CPA firms, lawyers, banks, trust companies and courts including:

  • The Smithsonian Institution
  • The White House
  • The Baseball Hall of Fame
  • The National Park Service
  • The Denver Mint
  • The Denver Museum of Nature & Science
  • Richard Petty Museum
  • World Figure Skating Museum
  • The International Monetary Fund (IMF)
  • Johnson Matthey Refiners
  • Resolution Trust Corporation (RTC),
  • Federal Depository Insurance Corporation (FDIC)
  • Heisman Trophy Trust
  • Homeland Security