I was wondering if anyone here knows what material was traditionally used for watercolor palettes? Today plastic is widely used, but I'm interested in what artists like Zorn and Sargent used.
To me it seems like they would use either wood (the same as they used for oil paint), metal, or glass.
I make my own wooden palettes, treated with linseed oil, and would be very happy if these work well with watercolors.
Also, what kind of brushes did they use for watercolor back in the 1800's? Natural hair, I would guess? I ask, because I have always heard that synthetic brushes are the best for watercolor.