First (?) shown in PLINC’s Alphabet Yearbook 1969, alongside Cenotaph, a skewed dimensional derivative. Later shown in 8 variants; 2 flat ones (Black and Outline) and 6 dimensional ones (B–H). [PLINC One Liner 1971] Credited to Ed Benguiat in Photo-Lettering’s Alphabet Thesaurus Vol. 3 catalog (1971).
There’s an anonymous digitization of the outlined style.