Editorial desk · Practical notes

Record what the map actually says

Transcribe the title, publisher and visible dates exactly. Note whether the date appears on the map itself or only in a seller’s description. Photograph the whole sheet and important details without flattening a fragile fold by force.

Distinguish the date of the geography depicted from the date of publication. Later reproductions can include an earlier date. Reliable library catalogues can help establish context, but keep uncertain identifications clearly marked.