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Public-images-osm logo.svg amenity = harbourmaster
A place of harbourmaster. Edit or translate this description.
Group: Amenities
Used on these elements
may be used on nodesshould not be used on waysmay be used on areasshould not be used on relations
Status: unspecified

A place of harbourmaster  Harbourmaster.
Probably more precise : office=harbour_master.