_{Tri-Sport 3-Wheel Vehicle. (‘Popular Science’ magazine, November 1971)}

“Gentle, gentle footsteps – wouldn’t mash a marshmallow.”

Crazy, baby! Tri-Sport 3-Wheel Vehicle originally appeared in the November 1971 issue of Popular Science magazine.

(Source: Popular Science)

Previously on Rad Ads: ‘The Owl And The Pussycat’