Watch a skate video today, and you'll notice how similarly shaped the boards are. It's called the "popsicle" design, because the deck is narrow in the middle and rounded off at both ends, like a popsicle stick.
Compared to the skating that you see today, 70s skatepark action was relatively gentle - parks like rolling hills crafted from concrete. And kids wore pads and helmets, because: safety first.
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