Atlas Handbook
Sources and evidence
Ledgers of instruments, witnesses and authorities, with the interpretation and confidence each claim carries.
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Treaty and frontier source ledger, 1829-1947
Every instrument behind the treaty-frontier layer - what each one settles, what it does not, and why none of them yields usable delimitation geometry.
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Venetian Maritime Network source log
The historical authorities behind every VMN feature, the base data underneath them, and the citation rules the compiled dataset enforces.