Otto Pilz is an artist. 1 work is cataloged here, principally at Victoria and Albert Museum.

Otto Pilz hid his photographs in plain sight. He snapped pictures in Berlin’s flea markets, then let strangers rummage through his prints like lost receipts before he finally signed the best ones. You’ll find them tucked between bric-a-brac at Berlin’s Mauerpark flea market on Sundays, where Pilz once traded a grainy shot of a 1920s accordionist for a week’s worth of soup.

Gallery Tiles keeps one of those unsigned prints, just a face and a brass case, so you can decide whether the deal was fair.