Detmold: A Centenary Exhibition
by England: University of York York, two other dates
$30 · Offered by Mullen Books
1983. Color wraps. 24 pp. 23 bw plates. VG. Item #11047 With sections on the twin brothers' lives, style and technique, and subject matter, this slim volume contains some exquisite renderings of their unique animal art, as well as a catalogue of 40 annotated works.
Found via Rare Books Intel, a search across rare-book dealers, auction houses and marketplaces worldwide.