Orsini Concordance: Complete Identification of the 758 Coin Engravings in Familiae Romanae (Rome: Tramezini, 1577)

First complete concordance of the 758 coin engravings in Fulvio Orsini'sFamiliae Romanae quae reperiuntur in antiquis numismatibus (Rome: Tramezini, 1577). Each of the 223 plates across 166 Roman gentes is matched to itsmodern catalogue reference — Crawford RRC, Mattingly–Sydenham RIC,Burnett–Amandry–Ripollès RPC, or specialist references — with a specimenphotograph and Orsini's original commentary. Built from a single private copywith documented copy-specific features: cancel plates (pp. 101 and 104) and eightmanuscript annotations datable c. 1848, six traceable to Mionnet's De la rareté etdu prix des médailles romaines (3rd ed., 1847). All 758 coin engravings are accounted for. Validated catalogue split:Crawford 648 / RIC 91 / RPC 13 / specialist 5. Eleven Orsini identification errorsand ten engraver metal mismatches are documented. This version (v2.0) follows a full multi-dimensional verification across fiveindependent dimensions (identification, description, specimen linkage, imageintegrity, and commentary), each checked against an external ground truth — theopen linked-data collections for identifications and specimens, and Orsini's own1577 text for every commentary block. Wrong-coin specimen photographs,obverse/reverse face-swaps, and metal-field and catalogue-ID errors wereremediated; the commentary now carries only Orsini's own observations (or aspecific note on what he got wrong). The data is expressed in nomisma.org-aligned JSON-LD (741 of 767 entries carry aresolvable nomisma type URI) for ingestion into the numismatic Linked Open Datanetworks. The portable HTML file is fully self-contained and opens in any browser with nointernet connection required.