"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
There are plenty that have. A search engine shows many references to the vehicle being of 1918 construction. The running gear looks like left-over A7V/Gelandewagen bits.
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"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
The running gear looks like left-over A7V/Gelandewagen bits.
The A7V track units were based on Holt caterpillar designs, one of its shortcomings (in common with St Chamond and Schneider CA). The Marienwagen looks to have essentially a copy of a standard 2-bogie Holt track set, or perhaps even genuine Holt parts. Several Holt tractors were imported to Germany while the USA was still trading with them.
The last pic of the Marienwagen II is not mounting an anti-aircraft weapon. This is a "beute" Ruski 57mm L/40 fortress gun (Hotchkiss). You will note the gun mount allows only limited elevation, and the absence of an aiming circle; two provisions necessary for German Flak.
In the closing weeks of the war, the Germans expected to face an onslaught of British tanks in the new year. Every effort was made to provide mobile anti-tank defense by utilizing lorries to carry field guns. I believe this was an experimental specimen for that task.