[Hammarlund] SP-600 original frequency dial disc repaint

[rrkrr]

Has anyone figured out how to repaint the original frequency dials on an 
SP-600?  How was this done in the first place?  The discs are brass and 
the dial numbers and reference markings are raised, ever so slightly, 
above the background.  I'm guessing that the original dials were first 
painted entirely white and then pressed face first against a (very) flat 
metal plate that had been "inked" with black paint - much like inking 
the type on an old printing press.  Has anyone tried this?  Better yet, 
is there anyone out there doing this as a service?

Bob K4ERR