The 'Clipper' brand was introduced in NZ in 1954.
'Clipper' branded equipment was manufactured by Akrad Radio Corporation Ltd,
they were distributed by G. A. Wooller & Co. Ltd.
Currently there are 23 documented models.
Clipper was a brand used on many of the more budget-end receivers and car radios by Akrad.
An article titled "Home Appliances Exhibition at A. and P. Show" in the December 1954 issue of Radio and Electrical Review states, "...the new brand, Clipper, which has gained such popularity in the last few months.". This suggests that Clipper was new in 1954. edit: The May 1954 edition stated that May 1954 would see the introduction of the brand's first models - and the very first would be the 5G4 Studio Gram with Garrard RC11 3-speed automatic record changer.
Only a couple of models have been seen at the time of writing that pre-date that. Although the 6P2 was a 1952 model - the Clipper variant was probably produced from 1954. Indeed, the sighted model has a speaker dated 1955. It had been manufactured under the Pacific and Regent brands prior to this, and a Clipper variant was added to their lineup when the brand came in to being. The other model is the 513 which was marketed around the Queens coronation in 1953 but was also likely manufactured for a few years.