For polishing varnish, a simple method is to rub with a rotary motion, using a mixture of 1/2 sweet oil or cottonseed oil, and 1/2 alcohol.
A more laborious process is as follows: After rubbing to a dull finish, rub ground rotten stone and water with chamois skin in a circular motion.

Let the rotten stone dry on the surface.

Then wipe off with the naked hand, rubbing in a circular direction and wiping the hand every time after passing over the work.

This looks simple, but is really a fine art.

These processes have practically replaced French polishing in the trade.
PAINTING Paints are used for the same purpose as other finishes, with the additional one of giving an opaque colored covering.