Found this little miniature marvel at the collector’s sale at Killinkoski Camera Museum (highly recommended, if you ever visit Virrat, Finland).
Not the modern digital variety, but the original point-and-shoot PEN: a 1968 or so Olympus PEN EE-2 28mm f/3.5 half-frame camera. Seems to be working, down to the weird selenium exposure meter (the transparent ring around the lens).