This is After Bar Sinister by R H Oppenheimer

Published in the UK in 1977. Second edition.

Hardcover with 136 pages plus fold out charts.

Post $10.95 in Australia.

A follow-up after McGuffin & Co, the author's first book on the breed. This is the story of the breed and the effect on it of the great Ormandy Souperlative Bar Sinister who marked a new high in the breed's history but who had one partially undescended testicle which by Kennel Club rule debarred him from the show ring.