Chocolate soda? There was a Rhode Island model as well:
"RI-1000
5 within an O / FIVE-O / AMERICA'S / FAVORITE / BEVERAGE (in a recessed keystone shaped panel)
COCUMCUSSOC FARM / WICKFORD, R.I. (in a rectangular recessed panel lower front)
7 FL. OZ. (in a rectangular recessed panel lower reverse)
5 in within an O / DES. PAT. and bunch of numbers
machine made crown top, 14 panels around body, very large X design on reverse
clear
8-1/2" From Little Rhody Bottle Club.