Shown in an undated Schaedler catalog and credited to Bob Quinzel. Appears in the 1976 Lettergraphics catalog (but not in one from 1969).
Offered by Characters of NY as Mercury Zephyr. Versions from Castcraft, Brendel, and SoftMaker (used for the sample) were issued as Cornered. Also inspired Gamer (Canada Type, 2004).