Additional observation:
Contemporary mixologists want to make Corn ’n Oil in a Daiquiri-esque manner, with the largest proportion being rum, and usually with lime juice added. Smuggler’s Cove’s version doesn’t include lime juice, but still makes it a rum drink, sweetened and flavored with falernum.
The Corn ’n Oil recipe on the back label of John D. Taylor is mostly falernum. A bottled cocktail, augmented.
(Thanks Jeff Berry for the label image.)