(1) Popcorn flavored with butter - Sign shall be in a conspicuous location of durable material in contrasting letters not less than 3/4 inch high stating "Flavored with butter" or words to that effect.

(2) Popcorn flavored in semblance of butter - Sign shall be in a conspicuous location of durable material in contrasting letters not less than 3/4 inch high stating "Imitation butter flavor" and listing the ingredients contained in the flavor in contrasting letters not less than 1/2 inch high in descending order of predominance.