International Institute of Minerals Appraisers

P.O. Box 3274, Boulder, Colorado, USA 80307

Mark Sonderby, ARA -- Certified Member No. 2020-04

  • Sonderby Consulting, LLC
  • 8 Fry Drive
  • Sheridan, Wyoming USA 82801
  • Phone No: 1-307-673-0515
  • Cell No: 1-307-210-7863
  • Email: markwfly@msn.com
  •  
  • Membership Class: Certified
  • Start Date: August 20, 2020
  • Subscription Date: January 3, 2026
  • Expiry Date: January 1, 2027

Certified

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