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It is a typeface that has seems to have a paired smallcaps and italics used in the maps as well.
After a fit of depression for not receiving any help, I dredged my way through the more Germanic parts of the internet and went from DIN FF->DIN 1451->DIN 16/17 where I think I have found my answer.
If anyone could show me to be right/wrong I would love to either close the book on this, or keep digging.
Thanks in advance.