I'm sure Allen Brown's oldracingcars.com site is well known among you all here...

He has a mystery with the Cooper T58 originally raced by Jack Brabham in 1961 with the first of the Climax FWMVs in it.

It might help if he can see some pics of Jim Palmer's various Cooper mounts for the '62 and '63 seasons.

I'm sure there are pics around, probably already posted on a thread here somewhere, can we bring them together so the mystery might be solved please?