Human Skeletal System, c. 1920s-40s Graphite on Card Anatomy Drawing Signed Charlotte Lehto lemon postcard And what a chair it

And what a chair it is

not visible from the front and it still sits flat

14 5/8" long x 5 1/4" wide x 7 1/2" tall

documentation covers all pages

Human Skeletal System, c. 1920s-40s Graphite on Card Anatomy Drawing Signed Charlotte Lehto lemon postcard And what a chair itOne more by the Charlotte Lehto who did a gloriously colorful pair of drawings of the muscular system, listed separately, c. 1920s 40s I believe, signed lower right. Some old creases to the heavyweight paper as evident (shot under fluorescent light, which only amplifies them) but quite a beautiful rendering detail photos describe it best. 18" x 12" and in overall good condition, with general wear and creases to the paper as evident, but no notable