Philips - 486B Tube radio

Radio with vacuum tubes PHILIPS model 486 B. Manufactured in Italy in the years 1937-1940 approximately.
Complete with its tubes, speaker, knobs, etc., all original.
Cabinet well preserved considering its age. A few age-related woodworms.
The operating tuning scale is intact and beautiful (glass).
A very fascinating item for collectors.
I tried powering it up and saw that it works (it powers on and the tubes light up), then I turned it off because I don’t know how to service it and I’m afraid of causing damage.
This is an antique item that is offered at auction mainly as a collectible and display piece.

Measurements: 38 x 46 x 28 cm.