[Arran]

Peter:
That looks like a Canadian General Electric model, which would have had a similar chassis to a Canadian RCA model of the same year, American G.E sets are different even if the model numbers are the same. Canadian G.Es also had nicer cabinets on lower to mid priced models compared to their American cousins. It also looks like you gained a couple of Rogers metal spray/spray shield tubes with your set, don't worry they are electrically the same as ordinary glass tubes of the same years, with a few exceptions. Rogers even suggested that people could try metal tubes in their sets verses the spray shield ones to see which types they preferred.
Regards
Arran