Coin collection with reference data

A coin collector's catalogue. Record each coin you own with its country, denomination, year, mint mark, grade (Sheldon scale) and condition, certification, quantity, what you paid, when and where, its estimated value and where you keep it. Link it to a reference coin from the Smithsonian's National Numismatic Collection (Smithsonian Open Access, CC0): the coin records of the National Museum of American History with their catalogue numbers, dates, places, material and measurements, issuers and mints where recorded, and a link to each object's page on si.edu. US Mint mintage figures are not included: the Mint publishes them only as web pages and PDF reports. The reference part waits for a free api.data.gov key (SMITHSONIAN_API_KEY); your own collection works without it.

Gallery / collection · 3 tables · design: Apothecary Olive

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