I remember this from my (German) childhood in the 90ies. But the farmer who did it used to ring a bell and shouted "Kartoffeln" without any artificial amplifica

I remember this from my (German) childhood in the 90ies. But the farmer who did it used to ring a bell and shouted "Kartoffeln" without any artificial amplification. It felt like a relict from another time and I think he stopped his rounds before the 90ies were over.