The Miami Herald reports that an anonymous donor has given a Georgia O’Keeffe painting to the Museum of Fine Arts in St. Petersburg, Florida. The painting was hung on a gallery wall Tuesday. It is called Grey Hills Painted Red, New Mexico.

Museum director John Schloder says the donation was a complete surprise. He said a woman called and said she had an O’Keeffe painting. She asked if the museum would be interested in seeing it and things progressed from there. Schloder says the donor wishes doesn’t want to be named.

The painting dates to 1930. It has been owned by several private collectors and lent over the years to museums such as the Art Institute of Chicago and the Museum of Fine Arts Boston.