Ashdown, Clifford: The Complete Adventures of Romney Pringle; v1
 

Twelve short stories of the very dubious Victorian era "private investigator" Romney Pringle, the creation of R. Austin Freeman (1860-1943) and J J Pitcairn (1860-1936) under the pseudonym Clifford Ashdown. The first six stories were collected in "The Adventures of Romney Pringle" in 1902, but the remaining six were only published as a book as late as 1970.

This edition contains all 12 stories:

1. The Assyrian Rejuvenator
2. The Foreign Office Despatch
3. The Chicago Heiress
4. The Lizard's Scale
5. The Paste Diamonds
6. The Kailyard Novel
7. The Submarine Boat
8. The Kimblerley Fugitive
9. The Silkworms of Florence
10. The Box of Specie
11. The Silver Ingots
12. The House of Detention