That'd be based on the Fiat 1800/2100/2300/1500 station wagon. Fiat of Argentina did make a pickup version of the smaller 1300/1500. I rather like the gilded aquarium! And the lanterns ...
The sign on the door reads (if I'm reading the Italian right): DeSalvatore Funerary Honours, Mercato San Severino (in Campania, Italy).