The Ambassador's Boots
Written by
Agatha Christie
Copyright 1929
[H.C.Bailey's Dr. Reggis Fortune] "Beginning as a case of curiosity, Tommy and Tuppence must investigate the swapping of two bags at an airport, both marked with the same initials. Things become all the more interesting when one of the men has no recollection of any such bag at all."
11th story in the collection .