DeSoto was a standalone brand, so it can't be a "Chrysler DeSoto". Back in 1946-48, DeSotos were either Custom or Deluxe, depending on the trim level.

The CGI renderings in those DeAgostini leaflets show a Custom badge, but they don't always reflect the reality. Most of the time, they only reflect the details of the DeAgostini model car that comes with the leaflet.