I happened to get a few of these on a recent trip to Terezin
The map when closed up [the blue picture with the Jewish Menorah] is 16cm by 16cm.
This unfolds to become a double sided map 64cm x 48cm
One side is the map with numbered locations and the reverse side explains the numbered features in Czech with theĀ English and German languages on a small booklet [picture number 2]