They sure *look* like TomTom 2017.03 maps to me! :-) Both Primo 2.4 (405512) and iGo View show them as TomTom 2017.03 maps.
I also compared them to TomTom 2015.09 maps (I happened to have those still) and they are *definitely* different - different file sizes and everything...
Here is the Primo 2.4 map versions screen (I only updated the Pennsylvania maps):
Spoiler: pic
Could the dates in the files be altered? Sure... I'll have to check for a recent road change - will report back.. If they are really from 2015, that road change definitely wouldn't be there...
Not sure how to be 100% sure they are not copies of some other map. One thing that does look strange to me is that in iGoView, all of the maps say "File description: Israel Map" at the top... :-) Hard to believe that NNG would make that mistake...
EDIT: That recent road change *is* in these maps, so they are definitely newer than 2015...
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