Would you guess what it was if there wasn't a title there? xoB is on fire finding images, and sends this one. This is an unpublished National Geographic picture from 1973.
"Men of Appenzell, Switzerland, gather to vote on public issues at the annual Landsgemeinde (constitutional assembly). Most Swiss cantons have abolished the Landsgemeinde in favor of anonymous written ballots, but a few Landsgemeinde are still held, continuing this 600-year-old tradition of direct democracy."
It looks like fairly direct democracy, but you do note that only half the eligible citizens seem included in the vote.