RFS060H5–'Farbe' (color) sign written in German on a black fence, warning of fresh paint.

RFHJXR87–German warning sign hanging on the fence

RFDKFGMP–Warning sign in English and German on the fence of a predator enclosure, Namibia

RMEBJK73–wood pigeon (Columba palumbus), sitting on a pasture fence with the warning sign 'Don't feed the horses, danger of colic' , Germany

RFMMMF77–Auschwitz, Poland - August 12, 2017: Auschwitz concentration camp close-up warning sign on the danger line of death

RM2CDWW1W–Warning sign on the former inner German border

RMDH50BX–Sign on a fence warning of asbestos fibers

RM2CDWW1Y–Warning sign on the former inner German border with the inscription Stop here zonal border

RMRA5Y0N–Warning sign on the perimeter fence of Duesseldorf International Airport, security area, Duesseldorf, North Rhine-Westphalia

RFEXMXWF–Round German sign on a wooden fence instructs 'Keep entrance clear' - Einfahrt freihalten

RM2WKPX8Y–german warning sign on garden door beware of the dog, Vorsicht bissiger Hund, Germany

RF2HXGAB3–Sign 'Sicherheitsabstand ein Meter' (safety distance one metre) on a chain-link fence.