This is a scanned version of the 1988 paper map set entitled: Beijing, published by the United States Central Intelligence Agency. This map consists of six sheets, the online linkage file provides a polygon layer that serves an index for the six 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.