Many years ago I bought one of the wooden gear knobs fitted to the early cars. It had the legend on top of the gear positioning, however the varnish/lacquer was cracked and so I scraped it all off, sanded it, applied sanding sealer and then a few coats of lacquer. End result, given I am total amateur at painting, is quite pleasing. All I have to do now is sort out a metal ferrule to fit into it as it did not arrive with one.
I still have the original from the HPE, but it had the varnish/lacquer worn away and was badly marked presumably from being handled without this protective coating.
Peter