A Connoisseur's Case is a 1962 detective novel by the British writer Michael Innes.Scheper p.119-120 It is the eighteenth in his series featuring John Appleby of Scotland Yard. It is a country house mystery, harking back to the Golden Age of Detective Fiction. It was released in the United States by Dodd, Mead under the alternative title The Crabtree Affair.Reilly p.845 It was adapted into an episode of the television series Detective with Appleby played by Dennis Price.
References
Bibliography Hubin, Allen J. Crime Fiction, 1749-1980: A Comprehensive Bibliography. Garland Publishing, 1984. Reilly, John M. Twentieth Century Crime & Mystery Writers. Springer, 2015. Scheper, George L. Michael Innes. Ungar, 1986.