Found aon old Zenith tv

[tritwi]

Hello everybody. I just found this old Zenith b/w television. Here in Italy a tv like this one is really hard to find. I would love to restore it but there is nothing written to identify the model number or the chassis. I think this tv is from early fifties. There is a date printed on the hvt cage but i think this indicates when the tv has been imported here and checked apparently by a Westinghouse dealer. We started regular tv service in 1954. The chassis layout looks similar to the one installed on portholes but this has a rectangular 17 inches picture tube. There also is a strange chassis placed below the main one and connected via a plug and a bunch of wires. Is it perhaps the power supply?Any help to identify this tv will be more than appreciated.
Marco