Brass disc marking SF’s geographic center is stolen

A brass surveyor’s disc, recently installed on an Upper Market area sidewalk to mark the precise geographic center of San Francisco, has been stolen.

On Wednesday, city surveyors and Public Works Director Mohammed Nuru visited the spot in the 700 block of Corbett Avenue to call attention to the disc and to the work of the surveyors that had established the spot as the precise center of town.

[...] surveyor Michael McGee predicted that the small brass disc — attached to the concrete with heavy-duty glue — would suffer the fate of similar markers and be stolen by vandals.

A circular patch marked the spot where the disc had been, briefly.