MintKey Type Bench

MintKey Type Bench helps you key an unknown world coin to a catalog type before you teach or buy. It is built for club novices, museum gallery docents, scout coin-badge mentors, and flea-market hunters who need a defensible type call—not a collection log. Load evidence chips for metal, module, motif, legend language, and mint mark. The bench live-ranks seeded catalog types as you toggle. Then you prove the call on a lookalike docket: two near-twin plates, one deciding landmark, and a short rationale card. This is not a collection inventory, not a grading diary, not a wear-scale tutor, and not a marketplace. There is no shop and no owned-coin register. Practice scores stay on the device as skill drills. What you can do • Rank candidates from a seeded 90-type world catalog covering US, UK, Euro national sides, Canada, Mexico, Japan, and intro Roman Imperial as evidence chips are toggled. • Open a type dossier with obverse and reverse plates, date span, mint, catalog nickname, diagnostic callouts, and do-not-confuse links. • Drill 40 lookalike twin pairs and reveal the single landmark that separates them. • Decode Latin and bilingual legend abbreviations such as D G REGINA, FID DEF, LIBERTAS, and REPUBLICA, with example strikes and tap-to-expand readings. • Browse a mint-mark wall grouped by country and years of use, with large illustrated punches for Philadelphia, Denver, San Francisco, Ottawa, London, Paris, and Mexico City. • Study edges and collars—reeded, plain, lettered, security, and interrupted—plus diameter and weight class cards. • Run timed club modes: 10-coin sprint, monarch series, and euro sides, with local practice scores. • Teach from eight 15-minute mentor lesson packs that include talking points and a pass-around plate order for club nights. • Pin types you are learning, search offline by common name, monarch, motif, or catalog nickname, and check a daily lookalike pair on your home screen. Ninety illustrated types, forty twin pairs, legend and mint-mark libraries, and mentor packs ship with the app, so a first launch already looks complete. The workshop is offline-first: plates, chips, dockets, and search work without a network. Key the type. Defend the call.