Read the legends to find the country
Start with the words. The country name is usually written on the coin, though not always in English — ESPAÑA is Spain, HELVETIA is Switzerland, ÉIRE is Ireland, and Latin legends like CONFOEDERATIO HELVETICA sidestep multilingual countries. Where the script is unfamiliar (Arabic, Chinese, Cyrillic, Greek), the alphabet itself points you to a region.
National symbols back up the text: an eagle, a specific coat of arms, a monarch’s portrait or a distinctive animal can identify the country even when the lettering is worn or in a script you cannot read.
Find the denomination and date
The denomination is often spelled out (ONE CENT, DIEZ CENTIMOS, FIVE PENCE) or shown as a numeral. Together with the country it tells you which series you are in. The date is usually a four-digit year, but beware: some coins use non-Western calendars — Japanese coins use imperial-era years, and some Islamic coins use the Hijri calendar.
If you cannot find a Western date, the calendar system is itself a clue to the coin’s origin, and conversion tables (or an app) will translate it to a familiar year.
Locate the mint mark and confirm the type
The mint mark is a small letter — often near the date or on the reverse — identifying where the coin was struck, and it can dramatically change value. Once you have country, denomination, date and mint, look the combination up in a catalog (Numista is the standard free reference) to confirm the exact type, metal and any known varieties.
At this point you know precisely what the coin is, which is the prerequisite for grading and valuing it accurately.
Skip the steps with CoinVault Pro
All of this happens in one photo with CoinVault Pro. Point your camera at the coin and it identifies the country, denomination, date and type using Gemini AI plus Coin-CLIP image matching — even reading non-Western dates — then estimates the grade and shows live values from Numista catalog data and real eBay sold prices.
Identified coins drop straight into your collection with sorting, filtering and a wishlist. CoinVault Pro is free to download, GDPR-compliant, and hosted in the EU.