I can’t be sure of course but I seem to remember seeing this in the distant past.
Other “interesting” events in 1967:
The US was in Vietnam,
Israel’s “7 Day War”
The BBC introduces Radio 1 broadcasting “popular” music
The Beatles released Sgt. Pepper’s Lonley Hearts Club Band
The first Rolling Stone Magazine is published
Best Picture “In the Heat of the Night”
Sidney Poitier starred in 3 notable films, “In the Heat of the Night”, “Guess Who’s Coming to Dinner?” , and “To Sir With Love”
Some accurate predictions as to video phones and personal computers. Missed optical fiber communication which had been suggested but was still coalescing. Ironic. Using a laser to drill the die for pulling telecom wire. Poor monkey. Hokey parlor tricks. And 5 million secretaries who can’t spell. Missed the whole laser typewriter eraser. Talk about dead end technology. And cutting through asbestos. Wow. But definitely aware that something big was in store. Never really thought of it that laser light is a form of energy never before existing. That is amazing! Good find.