Ehrhardt M17 was German heavy armoured car from World*
War I.*
*
One such car was captured by the Polish during*
the Greater Poland Uprising in 1919, and named*
"Pulkownik Grudzielski" (Colonel Grudzielski).*
Then it took part in the Third Silesian Uprising in*
1921 (named "Gorny Slask - Alzacja").*
In 1920s it served in Polish Army and was withdrawn*
by early 1930s.*
*
_____________[description by PIBWL]*
