This file contains the digital vector boundaries for the historical local authority districts that are split in England and Wales as at Census Day 1921.The boundaries available are: (BGC) Generalised resolution - clipped to the coastline (Mean High Water mark).Contains both Ordnance Survey and ONS Intellectual Property Rights. REST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/LAD_PT_JUN_1921_EW_BGC/WFSServer?service=wfs&request=getcapabilities REST URL of Map Server – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/LAD_PT_JUN_1921_EW_BGC/MapServer REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/LAD_PT_JUN_1921_EW_BGC/FeatureServer