The Columbus 694P was manufactured for Columbus Radio Centre Ltd by Radio Corporation of New Zealand Ltd in 1959.

One of Columbus' first Transistor portable sets from 1959.  Not as commonly found these days as its big brother, the PZ-117

It's unusual that while these two sets were often advertised together, they look significantly different to each other, and have vastly different model numbers.

Valves (6 Transistor, 3 Diode): 2N412, GEX34, 2N410, GEX34, 2N410, GEX34, 2N408, 2N270, 2N270

Intermediate Frequency: 455kc/s

Chassis Notes (most schematics can be clicked to download a full size version):

Service information (Columbus_694P_Transistor_6_Service_info.pdf) here

General Construction Notes for Radio Corporation of New Zealand Ltd: The first digit of the serial number typically indicates the year of manufacture of RCNZ chassis' (although not the decade - that requires a little knowledge of the valves, construction, etc). Sets from around 1934 onwards were often (but not always) constructed in a distinctive pressed 'baking pan' style chassis, seemingly unique to RCNZ.