This is a scanned version of the 1900 paper map set entitled: Geological Survey of Japan reconnaissance map. This map consists of five sheets, although sheets 2 and 5 are missing from this set, the online linkage file contains a polygon layer that serves an index for the other three sheets. To download the map sheets using this index in ArcMap, add the layer, open the layer properties dialog, select the display tab, and check the "support hyperlinks using field" box while selecting the URL field in the dropdown menu. Then use the hyperlinks tool to select the polygon representing the desired tile. These map sheets were scanned at 300 dots per inch and are in the TIFF format.