A little examination shows this isn't a font, as such. It's art work.
What form was the font in at that time? Letraset? Stencil? In 1978, we are years before DTP, or PCs. My initial call was beause the letter forms are not identical to each other for identical letters, and that didn't look like the passage of time.
The first time I think we used it was on a dot matrix 8086 computer and used a copy camera to reproduce to film. The date I posted was the year the company has started, sorry for the confusion... getting old, lol. We'd use a copy camera to film paper output and then hand layout onto clear film to make silk screens to do the printing. Thank goodness Photoshop finally came available!!! So I'm pretty sure the font was available at one time as a true type font or possibly simply one that we filmed and enlarged. I can't find either one now.