Examine coin's condition, mint mark, and year. Research online or consult experts for valuation.
Look for unique features like errors, double strikes, or rare designs. Use coin catalogs for reference.
Consider rarity, demand, and historical significance. Get coins graded by professional grading services for authenticity.
Check recent auction results and market trends. Join coin collector forums for insights and advice.
Consult with coin dealers or attend coin shows for buying or selling rare coins. Handle coins carefully.
Understand the value of your rare coins before making any transactions. Preserve coins in protective holders or cases.