1965 Robert Williamson Color Studies, A Pair (Tempera Plates 2a&b) old paint but I am not certain

but I am not certain if British or American

All slide tops slide smoothy and fit tightly

and including for the fact that I sell a lot to artists and creative people of various sorts

5 1/8" long x 3 7/8" deep x 2 1/4" tall

1965 Robert Williamson Color Studies, A Pair (Tempera Plates 2a&b) old paint but I am not certainThese two from a group of 1965 color studies by a Robert Williamson, found together in my neck of the woods, which, happily, were very carefully kept over the years: all are gorgeous and in near perfect condition. Both of these were wrapped in tissue so have barely seen the light of day; the color on them is pristine. Each light weight board rectangle was painted in tempera, cut with exactitude, and adhered to the watercolor backing paper. As they