This illuminated sign, which originally stood atop the Pepsi bottling plant nearby, was built by the Artkraft Strauss Sign Corp. in 1938. When Artkraft Strauss refurbished the sign in 1994, the company reportedly "refabricated all the letters and the bottle, duplicating the original style and craftsmanship."
The duplication wasn't exact, however. The "swirl" bottle wasn't adopted by the Pepsi-Cola home company until 1958 (though a predecessor design, with a "wave" on the shoulder only, was patented in 1940). The bottle's logo is an even later vintage; this design was reportedly in use from 1970 to 1987. As for the serving size, it's difficult to date. Have you seen an 8-ounce Pepsi lately?
Surviving 1938 signage, refurbished 1994, relocated to this site 2008
Gantry Plaza, Long Island City, Queens