Trevor Boyer (1948-), "Prey of the Bald Eagle", signed, pencil, 20.5 x 11cm, 8 x 4.25in, together with another by the same artist, "Studies of Long-Tailed Ducks", signed, gouache, 40.5 x 14cm.; 16 x 5.5in (2).

* Both are original illustrations used in publications. The first features on page 20 of "Vanishing Eagles" illustrated by Trevor Boyer, written by Philip Burton, published by Eagle Star Insurance Co Ltd. The second illustration is on page 126 of "Ducks of Britain & the Northern Hemisphere" by John Gooders and Trevor Boyer, published 1986.