Hello,
I found in 2015/2016 two us-american uniform buttons in Namibia (former German
protectorate 1884-1918).
It seems to be a reference to the German protection force.
Was there at the German Protection Force or the South African / British invading troops in World War I American military observers?
Diameter 15 and 23 mm, imprint behind:
New York Button
Who knows anything about it ???
greetings from archefoto