Nice fabrication!
At what point did S1's go from aluminum dash to wood?
They changed to a wooden dashboard with the introduction of the S1A at chassis number 460300.
I believe there were criticisms of glare and reflections from the polished aluminium dashboard and the lack of ventilation with the fixed windows.
(there were other minor changes but the most obvious were the wooden dashboard and the 'pop-out' door windows (with a fixed quarter-light)
Mark