This is a 1966 Sears Blue Badge and the last year for Sears sales. Note the "blue" badge. It's, what's known as, a large frame Vespa and came standard with a 4 sp, 10" tires, and 150cc engine. There was a 125cc version known as the small frame version and is more rare as the top speed was only about 45 mph, depending on how fat your arse is.