They are hardly what would be considered accomplished art but they are okay folk art drawings.
The seller describes Mr. Wiss as such:
"I went to the hospital as part of our church missionary work as a kid in 1950. I meet Calder at that time, and I went back as a older person to visit him. He had been placed there after WW I.and never left. Calder was Diagnosed with sever depression. He gave me the drawings at the time. I thought very little of them until I found them in storage, looked closer at the art and realized his talent."