These charming landscape engravings with mezzotint are after the original drawings in the collection of the Duke of Devonshire. They were published in 1776 by John Boydell. This set is beautifully mounted under glass with velvet in elaborate gold leaf frames. One of these mezzotints was bequeathed to the Metmuseum collection in 1917. 
Condition is very good. 
Measurements: Plate size W 10” x H 8” Frame size: W 15” x H 13” x D 2 ¼” 
Weight: 3 lb 8 oz each.