Machine-generated description — written by an image model, not by a person.
A May Day parade in an Eastern European city. Participants, largely men in overcoats, carry banners with Cyrillic script and red flags. White balloons are released. Likely 1950s-1970s, judging by clothing & parade style. Urban scene with brick buildings. Likely socialist-era archive material.
MayDay1960sparadesocialistarchives
What a machine spotted
A detector's list, not mine. It misses things and makes some up. Pick one to see where it looked.
Looks like these
A machine picked them, going by the picture alone. All from other rolls.