Both come from the estate of Anne Johnson in Seattle who was the co-owner of the Erica Williams and Anne Johnson Gallery that operated in the city from 1975-87. According to family records, they were purchased in New York, probably at the Andre Emmerich Gallery, in the 1970s.
Caro encountered Modernism when working as an assistant to Henry Moore in the 1950s and abandoned figurative work altogether after meeting with US sculptor David Smith in the early 1960s. Both the pieces in the sale date from the 1970s.
Pictured here is Story Book, a welded steel and stoneware sculpture standing 16in (40.5cm) high, estimated at $15,000-25,000.