[Arran]

It looks like the top, and sides was covered in French walnut veneer, it's likely that Philco used a tinted lacquer over it just to even it out, they did not use stain as a rule, the closest would be Mohawk light walnut, but you would want the dye based version as you don't really want to obscure the grain too much. Another option would be to use a dye on the wood directly, Lee Valley sells proper wood dye but I have used fabric dye for this purpose, though usually on bland blond wood like the front panel has under the faux wood grain.
There are a number of techniques I've seen used to redo the front panel, in addition to the decal kit mentioned I've seen something involving B&W photo copies tinted after they want on, painted faux grain, and in some cases real veneers, though usually in combination with paint as replicating the stringing details would be difficult. Another option would be to paint the cabinet white, or black, I'm not sure whether this was a factory option like it was with some RCA and brand Z models, but there you have it.
Regards
Arran