Ventilschutzkappe - The Missing Picture!
Part 4 of Stahlblech-Scheibenrad was posted on 17th June 2021. There we covered the stamped notations on the wheel rims together with a description of the Ventilschutzkappe (valve protection covers):
The rims on our 3.Serie, 4.Serie and 5.Serie armoured cars are no . . .
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