I'm guessing this is late seventies, probably really early eighties, and if you'll notice in this picture, this was when Coca-Cola was still a three liter, and had a metal screw cap, so I think that's like a fun timestamp to the photo.

我猜这是七十年代末， 可能真的是八十年代初，如果你在这张照片中注意到， 那时候可口可乐还是三升的， 还有一个金属螺旋盖， 所以我觉得这很有趣照片的时间戳。