Found Item (A Weird Post Card with Kids Doing Rude Things)

This post-card is of the old church in Helsinki and it was purchased in the l970's.  It's a weird one and I always knew it was odd.  Take a look at the kids...they are obviously aware of the camera.  Here, I've cropped it for you.
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One kid is pointing at her butt.  Two of them are either picking their noses or thumbing them.  Yes, this is an honest to God, real post-card.