engraving Robert Boyle antik

Antique print, 57 x 35 cm. = 22 x 13 inches
"Line engraving depicting the head and shoulders of Robert Boyle (1627-1691), a wealthy and accomplished English natural philosopher facing three-quarters to his right and enclosed in an oval frame. Boyle here wears a banyan, white cravat, and curly wig. Light coming through clouds at top left shines on his face. The plinth below the portrait holds mineral specimens, a pair of dividers, and several books. The Boyle family coat of arms appears on the side of the plinth. Below the plinth are such other symbols of Boyle’s science as an air pump, a flask, a bottle, two crucible tongs, a crumpled paper and some flowers. The signatures at bottom read “Geo. Vertue del. & Sculpt 1739” and I Kersseboom pinxt” and “Impensis I. & P. Knapton Londini 1740” and “In the Collection of Dr. Mead.”
The above description is from https://americanhistory.si.edu/collections/search/object/nmah_1451466 (Smithsonian, National Museum of American History (Boyle was, however, Anglo-Irish)).
This is an original 18th. century engraving, not a copy. It is framed, though I would advise a serious collector to replace the glass with either museum quality glass or glass that filters out ultra violet light (unless you are planning to hang it in a dark hallway, as it is now.)
Please pick it up and pay for it in Vesturbær, Reykjavík. You are welcome to examine it before committing to purchase.