List of 'A' refiners/mints/hallmarks:

• A. Szabo Co., Inc.
• AARO Metals Co.
• Academy
• Acromatics
• Action Metals and Refining
• AG (Great American Silver Corp.)
• AFI (to do)
• AGS/American Gold and Silver (to do)
• AGNON (to do)
• AW/Alexander Westerfeld
• Allen's Coin Shop
• A-Mark
• AMCO/American Mint Co. (to do)
• American Bullion Exchange (to do)
• American Credit
• American Republic (to do)
• Anaheim Metal Co
• Anglo-American Metals (to do)
• ABC/Anislie Bullion Company
• APM/American Pacific Mint or American Precious Metals
• APS
• Anode Silver
• Aqua Mining
• Argentum (to do)
• Argentum Refiners
• Argor Chiasso (to do)
• Arizona Assay Office (to do)
• ASARCO/American Smelting and Refining
• ASI
• ABC/Australian Bullion Company (to do)
• Aurum Refining (to do)