[Ron Ramirez]

Well, the USA model 34 produced during the 1935 season, at least during the first half of the season, used black rosette knobs. I do not know about the Canadian 334, perhaps it did also, perhaps not.

Now your 334B is a set I would like to have, it's really cool.

I'm pretty sure Perivale (UK Philco) built their own cabinets once they became established in the UK. I believe Perivale also built cabinets for Philco sets sold in Europe. I once owned a French Philco 2620B tombstone. The chassis had been built in the USA, but the cabinet had a strong Perivale look to it. You can see a picture of it here (scroll down to the first color photo on the left):

http://www.philcoradio.com/world/other.htm

It definitely uses UK Philco grille cloth, as some Philco models sold in the UK use the same cloth pattern.