Questions about one of our guides, a topic you’d like us to cover or a correction? Email hello at 52tunbi dot com and we’ll aim to reply within two business days.

We can’t value or authenticate individual coins from photos, and we don’t buy or sell coins. For an appraisal, visit a reputable local dealer or coin club, or use a professional grading service for valuable coins.

Please don’t send personal financial details by email.