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1. British Cameroons conflated historical administrative boundaries, 1923
1923. Map and Geospatial Information Center, Lewis Library, Princeton University. Shapefile representing historical boundaries of provinces and divisions in British Cameroons for 1923. GADM country-level administrative shapefiles...
2. British Cameroons extracted historical administrative boundaries, 1923
1923. Map and Geospatial Information Center, Lewis Library, Princeton University. Shapefile representing historical boundaries of provinces and divisions in British Cameroons for 1923. Boundaries were extracted from a scanned Bri...