The Empire list consists of: Helvetica (Roman) 14 pt.–48 pt, Helvetica Cursive 12 pt.–24 pt, Helvetica Demi-bold (Roman) 14 pt.–72 pt and Helvetica Bold-Face (Roman) 12 pt.–72 pt. The sizes listed suggest that foundry type is being discussed, but the note on the opposite page only mentions composition type. “First imported to the United States thru [sic] Mergenthaler Linotype Company by Bernard Blatt, a well-known typographer and President of Empire Typographers of New York, Helvetica has enjoyed widespread attention. It has become an immediate favorite on the continent [sic] since its introduction by Linotype Gmbh [sic] of Germany,” it says. This seems to support the information in my book Helvetica and the New York City Subway System that Helvetica was ﬁrst made available in the United States as matrices from German Linotype, two years before Mergenthaler Linotype made matrices itself and Continental Amsterdam imported foundry Helvetica from Stempel. The large sizes of the type must have been APL or All-Purpose Linotype mats designed for headline usage and available in sizes up to 144 pt.
The names of the Helvetica family members mentioned are a bit odd. The translations from the German are literal: Kursiv has become Cursive (instead of Italic) and halbfett has become Demi-bold (instead of Medium).
I am looking forward to further research at the TDC library to see if there are any other dated type specimens of Helvetica, Akzidenz Grotesk or Standard.