Rare complete two-volume set of Medals and Decorations of the British Army and Navy by J.H. Mayo, published 1897 by Archibald Constable & Co., London.
First editions. 
Richly illustrated with full-colour plates and black-and-white illustrations throughout. Covers gallantry medals, service decorations, and orders awarded across the British military. A foundational reference for medal collectors and military historians.
Both volumes tightly bound, clean, and matching in red cloth. A stunning and complete example of this increasingly scarce 19th-century military work.