The bits and pieces are resin parts from an Azimut resin kit. It is a German Command Trailer and as such could have been used during V2 launches.
Here are all the parts and some construction.
Cyril gave me a completed Famo - I have weathered and repainted some of this, it is still a work in progress.
Mittlerer Zugkraftwagen 12t Sd.Kfz.8
Halftracked prime mover of Wehrmacht troops, the Zugkraftwagen 12t heavy traction powered vehicle. The Sd.Kfz.8 was manufactured primarily at the Daimler-Benz factory in Berlin - Marienfeld and the Kruppwerke at Mülhausen, some also at Skodawerke at Pilsen. Manned by a crew of up to 13 and powered by a 185 net horsepower- this machine was used as a support tractor for the V2 troops, although shown in a few photos towing the Meillerwagen.