I'm pretty sure I had this, too. I turned 3 in 1966, so I have vague memories of a lot of what you'll be talking about here. I look forward to the flashbacks!
Great puppet! The smiling Batman was a sign of how the character was perceived back then, not the grim and gritty one of today.On a side note, I always hated it when the merchandise image of Batman would have a different chest logo than in the comics, like the one pictured here.