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Historic Maps
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layer:
1850-Boston-Railroad-Crossings-Perkins
https://druid.datalegend.net/IISG/historic-maps/id/layer/1850-Boston-Railroad-Crossings-Perkins
geo:
hasGeometry
http://www.opengis.net/ont/geosparql#hasGeometry
bbox:
fc327d6fcf55ae4bf8db4a57386c6d96
https://druid.datalegend.net/IISG/historic-maps/id/bbox/fc327d6fcf55ae4bf8db4a57386c6d96
graph:
mapwarper
https://druid.datalegend.net/IISG/historic-maps/graphs/mapwarper