The name of the project are, 10,5 K.Pz.Sfl.IVa “Dicker Max”, “dicker means fat in german. I put ‘round 1,5 month to build the model. It’s 1/35 scale from Dragon. Some history. Only two of these wagons were built, built on a chassis from Pz IV. They were developed, among other things, to knock out the bunkers along the Magniot line, but also served in Russia, together with the “Sturer Emil.”