6 links
Ancient Coin Certification Service
davidrsear.com
David R. Sear provides an authoritative aid to collectors and dealers who are seeking both a valid attribution of their coins and confirmation of authenticity.
Independent Coin Grading Company
icgcoin.com
Offering blind submission through a CPA firm to eliminate submission bias.
Robert Matthews Coin Authentication
coinauthentication.co.uk
Specialises in the scientific examination and authentication of British milled coins.
Sovereign Entities Grading Service, Inc.
segsgrading.com
Grading and encapsulating service for U.S. coins, errors, and varieties.
Showing 20–6 of 6 results