It appears to be one of a series of graphic elements embedded in the sidewalk paving along Kong Oscars gate. The symbols are probably related to businesses and trades that operated along the street, as suggested, among other things, by the scissors symbol associated with a hairdresser and by other symbols. The exact meaning of this symbol is unknown.
Kong Oscars gate was an area of craftsmen for centuries, and parts of the street were formerly known as "Shoemakers’ Street" and later as "Tailors’ Street."