At
http://www.echodelta.net/mbs/eng-welcome.php is a wonderfull translator and gives for K.938088 =
Latitude : 50° 20' 55'' N
Longitude : 13° 16' 44'' E
for East Germany. See attachment.
For K.938033 in West Germany it gives:
Latitude : 50° 28' 10'' N
Longitude : 6° 14' 25'' E
See for map attachment.
Jaap