Helvetica: Old and Neue
http://www.itcfonts.com/Ulc/4112/

Strizver, Ilene
Upper and lowercase Magazine
2008

Abstract:

The history of Helvetica includes a number of twists and turns. There are, in fact, two versions of Helvetica. The first one is the original design, which was created by Max Miedinger and released by Linotype in 1957. And secondly, in 1983, D. Stempel AG, Linotype’s daughter company, released the Neue Helvetica® design, which was a re-working of the 1957 original.