Nine copper engravings dedicated to the Planets, 18th century European manufacture

Nine copper engravings dedicated to the Planets, 18th century European manufacture
Elegant engravings on laid paper, only one sheet has a watermark. The sheets are dedicated to Saturn, Jupiter, Mars, Mercury. Two graphics are dedicated to the Sun, two to the constellations Ursa Major, Minor and the Whale. One sheet depicting a putto with a telescope. Flaws present, unframed
Copper engraving, overall dimensions 8.2x5.9 in. each