Jungle Camp [Free Play Mint Vendor] © 1941 H.C. Evans & Co.
Released in January 1941.
Also released as :
"Jungle Camp [Payout model]"
"Jungle Camp [Free Play Straight model]"
"Jungle Camp [Free Play Convertible model]"
Collector's Treasury of Antique Slot Machines from Contemporary Advertising - Peter Bach - Page 273