Ray,
In his book "Can-Am Challenger" Peter Bryant writes about his early career as a race team mechanic working for Reg Parnell.
On page # 117 he states regarding the first Grand Prix at Pukekohe in Jan. 1963.
" Reg Parnell had brought over one of last year's (1962 NZGP ) Tasman Coopers as a spare car and ended up loaning it to a young Kiwi named Jim Palmer."
So that would mean that the Jim Palmer car at the 1963 NZGP would have been a Cooper T 53.
But which one ? F1/1/61,(Surtees) F1/4/61,(Salvadori ) F1/2/61 (Lex Davison) or was there another Yeoman Credit car ?
Jim Palmer. Pukekohe. Jan. 1963.
(Ken H )