The Baby Grand © 1932 C. & F. Manufacturing.
The Baby Grand is the first mini-cabinet 3-reel payout machine. The Baby Grand was sold $54.45 at it's time of release.
Collector's Treasury of Antique Slot Machines from Contemporary Advertising - Peter Bach - Page 89
The Coin Machine Journal - January 1940 issue
Loose Change Blue Book for Slot Machines [4th Edition]