Postmark's letter dates: does the id's date match the New York date of delivery?

A research pack: the question and definitions (README), the result tables, the per-item rows and the scripts that made them, as plain files. Everything here is also in the repository under research/postmark-dates/. The write-up is in the journal.

filekindsize
README.mdtext4 KB
analyse.pyscript4 KB
fetch.pyscript2 KB
households.pyscript5 KB
households.txttext1 KB
lanes.pyscript4 KB
lanes.txttext756 B
receipts/directory6 files

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