Bowen TV rings a bell. When did telelphone prefixes go out? That was TErminal in Beaumont. After a while the phone company dropped those and just listed it as 83, but I don't know when that happened. I know when my parents moved to their new house in the west end of Beaumont in 1970 that their new phone number had no prefix so I think it must have been in the sixties that the prefix was dropped. But Bowen could have had a whole bunch of tags printed up and kept them.
Just reverse looked up the number and it still comes up as Bowen TV and Appliance at the Highland address! I went to Google Street View but don't see anything definitive. There's a Mobil station and something that looks like an abandoned church with concrete pipe stacked in front of it? Hmm...
BTW the picture looks great...keeping it in the living room?