The drawings included here are pencil and/or charcoal on LeEcolier paper. Not sure of the type of paper used for the watercolors. The last piece, the reclining nude, is charcoal. Considering their age they are all in good condition. Included in this lot (not shown) bought at an estate sale, are other watercolors, drawings and educational/instructional materials from the same period through the 1960's. The art works shown here are all by the same artist and dated from 1931 to 1933.