Table 1.
List of first coins underwent a comprehensive digitization process, encompassing cataloging, digital twins creation, and chemical analysis.
Fig 1.
Workflow from physical coin to virtual coin in Nummi Digitali.
Fig 2.
Nummi Digitali website (front-end).
Reprinted from https://nummidigitali.it under a CC BY license, with permission from scientific director of the NUMMI DIGITALI, original copyright NUMMI DIGITALI year 2025.
Fig 3.
3D mesh model derived from laser scanning versus textured 3D model derived from photogrammetry.
Fig 4.
Sketchfab webpage and functions. (a) Models uploaded to the Nummi Digitali profile. (b) Sketchfab annotations: interactive points of interest can be added to the models and information can be accessed by clicking on numbered markers. (c) Model navigation on Sketchfab: clicking on the marker, a window displaying textual information and images related to the point of interest will open.
Fig 5.
XRF spectra of representative coins in silver (No 26249), copper suberated in silver (No 26450), bronze (No 9509) and gold (No 51735).