Baby Bell Front Vender © 1928 Watling.
Style 18-A, Nickel Play.
Baby Bell Vender was sold $75 in 1929. The new price in 1930 was $65.
Also released as a Quarter Play model called "Baby Bell Front Vender [Style 19-A]".
Collector's Treasury of Antique Slot Machines from Contemporary Advertising - Peter Bach - Page 30, 31 & 47.
Loose Change Blue Book for Slot Machines [4th Edition]