Blue Seal [Jack Pot With Check Separator] [Style 51-S] © 1929 Watling Mfg. Co.
Quarter Play.
Blue Seal [Jack Pot With Check Separator] [Style 51-S] was sold $95 in 1929. The price was reduced to $75 in 1930.
Also released as a Nickel Play model called "Blue Seal [Jack Pot With Check Separator] [Style 41-S]".
Collector's Treasury of Antique Slot Machines from Contemporary Advertising - Peter Bach - Page 32 & 50