Having drawn a blank, I have managed to reproduce the font, or at least something very close to it.
![Image](https://i.imgur.com/yp0qn7v.jpg)
Using an image editor or word processor, this can be printed on to something like matt self-adhesive inkjet-printable film,
cut out and applied to the instrument panel before finishing with satin lacquer. Alternatively, it would be possible to print on
to a sheet of material to cover the whole panel.
![Image](https://i.imgur.com/qFFlTJK.jpg)
If anyone is interested, send me a PM and I will send you a copy of the font (a small voluntary contribution would be appreciated!)