• In 1935 Grey and
The News cartoonist J. L. "Jack" Quayle shared first prize for a sketch commemorating South Australia's Centenary. Around this time he and John Goodchild were commissioned by the South Australian Tourist Bureau to produce a series of lithographed posters which were extensively used on railway station billboards and elsewhere. • He had a major role in the design of South Australia's
Coat of Arms, granted in 1936,
replaced in 1984. • A large mural version of a design by Grey of
Piccadilly Circus, commissioned by the theatre owner
Dan Clifford, reproduced by Frank Hussey, adorned the wall above the circle staircase of the
Piccadilly Theatre in
North Adelaide when it opened in 1941. The mural was later painted over, but was rediscovered during the 2022 renovation of the cinema. • He designed the silver tea and coffee service made by the Kenwrick brothers as a wedding gift from South Australia to the
Princess Elizabeth and the Duke of Edinburgh and the ceremonial chairs used by the royal couple during their official visit in 1954. • He designed the cairn and plaque memorial for
Daisy Bates at
Ooldea, South Australia. ==Family==