IE-CoR data were taken from the following Old Prussian sources: the three cathechisms, the Elbing vocabulary and Grunau‘s vocabulary. These sources represent several slightly different dialects of the Old Prussian language, so the IE-CoR data are therefore a form of compromise across those varieties.
Note on geographical location
The coordinates are those of Moxovoe, Kaliningrad Oblast', Russia. It is an archeological site located on the Sambia peninsula, which was one of the last areas where Old Prussian was spoken.
