This small building was made of brick. It was standing until the early 1970s, when it was torn down. It served as a place to bring the dairy cattle for milking. These cows were very important in communal times.
When communal kitchens were still in operation (up until 1932), milk was delivered once a day in South Amana. There were special milk buckets made by the tinsmith to hold the milk. My oma still has one of these. Each kitchen received between 6 to 8 gallons of milk each day. This was brought in an open wagon by the milk man. The milk was placed on a platform made of cement or wood. These platforms were called milch bochs.
After milking and before consumption, the milk was strained and put into to basement. This was to keep it cool. Other things were made from the milk. A good source to find out more about it is at the Amana Heritage Museum in the village of Amana (main).