I'm working with Greek maps in 1:5.000.
On the corners of the map there are the coordinates in degrees, minutes and seconds.
Unfortunately, there are no information about projection, datum,...
If I assume that they are WGS84, they are off if i compare with other (correctly) georeferenced cartography I have.
If I try to shift the map to fit the others, i see that a coordinate like this
with a difference of approximately -1.30 Long and -4.40 Lat.
If I assume that they are in other coordinates systems (usually used in Greece), the map is much more off than these values i underlined before.
On the same map, there are also other coordinates information which I cannot understand too.
I was wondering if someone can help me with this.
Thank you in advance for your time and consideration