Покровский - map search
Topographic map m36-2 of scale 1:500 000
Russian - Soviet military - 1938 - 5Mb -
Topographic map m37-11 of scale 1:200 000
Russian - Soviet military - 2Mb -
Topographic map m44-2 of scale 1:500 000
Russian - Soviet military - 2003 - 8Mb -