Roof accessory for model house

Accessory for model house for experiments in aerodynamics, plastic model to be placed onto the model house with a removable pointed roof
Dimensions: 80x60x65 mm, roof slope: 55 °
Vehicles of various designs for measuring aerodynamic
resistance, each fitted with a 2 mm metal pin so that they may
be fastened to the stand for aerodynamic objects DM712-1H