Add a coin

Pick Raw coin or Slabbed. For a raw coin, photograph both sides, close enough to read the date and mint mark; the app reads the coin, guesses its condition and spots toning, for you to check. For a slab, photograph the label side, close enough for the barcode to be sharp; the app reads the grader, grade and cert number and checks the cert number against the barcode. ANACS prints its cert number and barcode on the back, so for ANACS photograph the back too. Reading costs about 2 to 4 cents with Claude, often less with Gemini or ChatGPT. Its value is then estimated in the background from recent sales, for about 4 to 12 cents.