Modular Panel lettering

I’m about to silkscreen my cloned Modular modules, I’ve never silkscreened before and hope that results will be good.
However, I’m not sure what colours the original Moog lettering was, I seem to remember the only Modular I ever saw as having
silver or natural aluminium lettering and dials etc. not white. Can anyone advise me as to early Modulars lettering colour?

The panels are etched, so natural aluminium.
The etched lettering is the smallest and finest I have ever seen on any modular panel. The lettering is razor sharp. STG/Soundlabs uses a similar etching process for those MU modular panels.STG/Soundlabs
And there is a custom shop that will make panels, though I have not tried them.
Custom Panels from Bigbluewave

big thanks CZ..Yea I thought they were done in the natural aluminium and not white so that clears that up. Also thanks for great photo and info..hope mine comes out as good as this.