Set of two Male Anatomy Drawings

This set of two male anatomy drawing prints on some type of cardstock paper are in great condition. One is by unknown artist and date. Gray scale with a wide range of motion depicted, approx measurements: 18 7/8" x 12 2/3", actual image size: 14 3/4" x 8 3/4". The other print is tilted "Male Nude" by Leonardo Da Vinci, reproduced by Royal Library, Windsor Castle. Red chalk study sketch of the male figure. Approx measurements: 16 1/3" x 12 1/3", actual image size: 10 3/4" x 3 1/3".Â