After Belgium declared its independence in 1830, it took a long time before the separation was officially established.
This was followed on 8 August 1843 by a treaty, concluded in Maastricht, on the marking of the border.
In the same year, a start was made with the installation of cast iron boundary posts, starting with boundary post number 1 at the Drielandenpunt in Vaals and ending with boundary post number 365 near Retranchement in Zeeuws-Vlaanderen, all with the year 1843
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Ellewaardweg, 4885 Achtmaal, Noord-Brabant, Netherlands