This section is from the book "Cassell's Cyclopaedia Of Mechanics", by Paul N. Hasluck. Also available from Amazon: Cassell's Cyclopaedia Of Mechanics.
Brush over the article some raw sienna ground in water, mixed in stale beer, and allow it to soak in. When nearly dry, wipe off the surplus with clean rag; this will give a yellowish undercoat. Now take some Vandyke brown ground in water, mix as before, and apply with a ragged piece of sponge, putting in the figure and varying by a tremulous motion of the hand, blending the colours and removing any harshness by going over the still moist colours with a badger softener or a clean soft sash tool. When quite dry, rub smooth with coarse rag or fine glasspaper, wipe over with raw unseed oil, then French polish or spirit varnish. A slight tinge of red in the polish will be an improvement.
 
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