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Ancient Coins
Ancient coin is defined on this coin terms glossary page.

Approval Service
Approval service is defined on this coin terms glossary page.

The ANA
What is the ANA? ANA is defined on this coin terms glossary page.

ASW (or A.S.W.)
ASW (also shown as a.s.w.) is defined on this coin terms glossary page.

Abrasion Doubling - What is Die Abrasion Doubling?
Die abrasion doubling is defined on this coin terms glossary page.

Adjectival Grades
Adjectival grades is defined on this coin terms glossary page.

Adjustment Marks
Weight adjustment marks are defined on this coin terms glossary page.

Alloy
Alloy is defined on this coin terms glossary page.