A revision of Helvetica schmalfett (see Commercial-Grotesk, Helvetica Condensed), redrawn for large-size machine setting (Großkegelsatz) by Arthur Ritzel for Linotype. Helvetica Inserat is slightly narrower, has shorter descenders, and is distinguished by a diagonal ‘Q’ tail. The open ‘4’ is unique to Inserat among digital versions. However, it can also be found in a (revised?) version of Stempel’s Helvetica schmalfett (and schmalhalbfett). [“Ein guter Griff Helvetica” specimen, c. 1959]. There is also an (oblique) Helvetica Inserat Kursiv. [Linotype Großkegelschriften specimen, c. 1970]
Released by Stempel [sic!] in 1966 [Adobe/MyFonts] or 1969 [Berthold Types, 1988].