From the documentary, Of Dolls and Murder:
Before forensics, DNA, and CSI we had dollhouses – an unimaginable collection of miniature crime scenes, known as the Nutshell Studies of Unexplained Death. Created in the 1930s and 1940s by a crime-fighting millionaire heiress grandmother Frances Glessner, the Nutshells helped homicide detectives hone their investigative skills.In Unpapered Bedroom, "Mr. and Mrs. Smith" checked in, but only Mr. Smith checked out. . . .
Around the boarding house, Maggie was known as a "good time girl" who never let a thing like epilepsy stand in her way. . . .
Retroscope has a nice collection of images.