Tillage implement;Conventional (right-hand) plough;Machinery demonstration
Brenner, W.; Wenner, H.-L.

Conventional (right-hand) plough;Rear mounting
Brenner, W.; Wenner, H.-L.

Tillage implement;Reversible plough;Coulters
Brenner, W.; Wenner, H.-L.

Schälpflug
Stubble cultivation;Conventional (right-hand) plough
Brenner, W.; Wenner, H.-L.

Conventional (right-hand) plough;Ploughing
Brenner, W.; Wenner, H.-L.

Tillage implement;Rotary cultivator
Brenner, W.; Wenner, H.-L.

Tillage implement;Disk harrow;Extra large tractor;Articulated steering;Twin wheel
Brenner, W.; Wenner, H.-L.

Tillage implement;Seedbed preparation cultivator;Combination harrow
Estler, M.

Quarter-turn plough;Ploughing
Brenner, W.; Wenner, H.-L.
1960

Ploughing;Reversible plough;Reversible plough
Wenner, H.-L.
1970