Interesting...thanks!
So the 2 and 4 designations are not bands, but are originating states, with 2 indicating New South Wales and 4 indicating Queensland. Example: 2BL is Sydney on 702 kHz and 4BC is Brisbane on 1116 kHz. Radio is standard AM band only.
Looks as if AWA (not to be confused with Aiwa) made some very nice radios.
jr