




Found this old Belgian/French inland waterways map – any idea of its age or value?
It includes canals, rivers, ports (Antwerp, Dunkirk, Calais, Lille, etc.), lock information, and what appears to be a detailed navigation table on the right-hand side.
The map is quite large, printed on thin paper, and shows obvious signs of age (yellowing, creases, edge wear, and a few tears), but it’s still fully readable.
Does anyone know:
Approximately what year this map was printed?
Who might have produced it?
Whether it would have been used by commercial barge/skipper crews?
Whether it has any collector or historical value?