ファイル:Seal of Oakland, California.pngDescriptionSeal of Oakland, California.png English: Seal of Oakland, California. Date circa 2014 date QS:P,+2014-00-00T00:00:00Z/9,P1480,Q5727902 Source
ファイル:Seal of Oakland, California.svgDescriptionSeal of Oakland, California.svg English: Seal of Oakland, California Date circa 1961 date QS:P,+1961-00-00T00:00:00Z/9,P1480,Q5727902 Source