Renaissance designs by Italian draughtsman and printmaker Stefano della Bella. Living from 1610 to 1664, he is known for etchings with a great variety of themes, including court scenes, landscapes, and genre scenes but I like these best.

Fantastic vases. Probably 1646.
Fantastic vases. Probably 1646. Signed. In the public domain due to age. via https://www.magnoliabox.com/products/fantastic-vases-probably-1646-ql-a-140331-1678
"Design for a frieze with a leopard and a grotesque head." ca. 17th c.
“Design for a frieze with a leopard and a grotesque head.” ca. 17th c. Pen and brown ink. Bears numbering in pen and brown ink, verso: 11.84. School of Stefano della Bella. Image © Sotheby’s 2019. Fair use license. via https://www.sothebys.com/en/buy/auction/2019/old-master-and-british-works-on-paper-online/school-of-stefano-della-bella-design-for-a-frieze
"Tritons Wrestling with Fanged Sea-Creatures." ca. 1645-50.
“Tritons Wrestling with Fanged Sea-Creatures.” ca. 1645-50. Etching. Collection of the Metropolitan Museum of Art, New York. In the public domain due to age. via http://spenceralley.blogspot.com/2016/07/stefano-della-bella-in-italy-17th.html
stefano-della-bella-italian-1610-1664-frieze-with-a-child-and-two-dogs (1)
“Frieze with a child and two dogs.” 17th c. Drypoint etching. Inscribed “994 I/VI” in pencil on the reverse l.l. Identified on a typed label attached to the mat. Image © 1999 – 2019 SKINNER, INC. Fair use license. via https://www.skinnerinc.com/auctions/2920M/lots/571