Find Idaho coin shops near me & Precious Metal dealers near me with the APMEX local coin shop directory. Learn about Idaho sales taxes on Precious Metals. SMI is located in Coeur d'Alene, Idaho, just 35 miles from Spokane International and coins for financial institutions, private corporations, and government mints. Obverse Description: Highlights a bust of President George Washington. Reverse Description: Idaho is the 43rd coin released in the 50 State Quarters Program.