Sheet cuts of the topographic frame map work TK50

The topographic frame map work TK50 is a map sheet section defined according to geographical network lines. Starting from the map sheet sections of the TK25 with a size of 10’ geographical longitude and 6’ geographical latitude, the sheet sections of the TK50 result from the aggregation of 4 TK25 sheet sections each, i.e. they have an extension of 20’ geographical longitude and 12’ geographical latitude. The sheet numbering of the TK25 follows a tabular system The first two digits indicate the row (numbered from north to south), the last two digits the column (numbered from west to east). The sheet numbering of the TK50 results from the lower left TK25 sheet number with the prefix "L" (Roman for 50).