Blue Angels and Whales by Robert Gibbings
Pelican Special first edition. Number S16. Published 1938.
I believe this is the first Penguin book to include a coloured page.
Covers clean. Tiny chips at head of spine.
Pages clean with slighty darkened edges. Gravure plates clean. Tipped in page with coloured (blue and yellow) fish is slightly foxed.
The photographs form part of the description.