This picture shows a cremation furnace at Kamp Vught concentration camp near s-Hertogenbosch (Den Bosch)
Kamp Vught was a holding place, not an extermination camp, but 700+ prisoners died there so the furnaces in the crematorium still got used quite a lot.
At least 421 people lost their live due to the poor living conditions at the camp and a firing squad took the lives of 329 more. (Kamp Vught: A Dutch National Monument with a Sad History)