Three Davis Meltzer (20th c. American illustration artist, 1930-2017) gouaches on board, "Voyager Saturn-Rings of Saturn", "Voyager Saturn-Saturn's Moons" and "Voyager Saturn-Saturn's Rings", original illustration artwork commissioned by The National Geographic Society in 1981, all have artist and painting information on boards and on verso, sight sizes are 5" high x 17 1/2", 13 1/4" high x 4" and 4 1/2" high x 17 1/2", mat board sizes are 10 1/4" high x 20", 18 3/4" high x 8 1/4" and 9 1/2" high x 19", from The Estate of Davis Meltzer

Wear and toning on mat boards