Hiram Hoeltzer, a professional art restorer, sought declaratory relief to quiet title to a large mural that once was affixed to the walls of the Stamford High School. This mural had been painted as part of the Works Progress Administration (WPA) in 1934. Workers removed the mural when the high school was renovated in the summer of 1970. They cut it into thirty pieces and placed it on top of a heap of construction debris, adjacent to a Dumpster. This was done despite oral and written requests from school officials that the mural be taken down and preserved. A 1970 graduate of Stamford High, recognizing the value of the mural, placed the mural pieces into his car and took them home. The student took the mural to Karel Yasko, a federal official responsible for supervising the restoration of WPA artwork. Yasko suggested that the mural be taken to Hiram Hoeltzer. In 1980, city officials and other interested people began contacting Hoeltzer about the mural. In 1986, the city formally wrote to Hoeltzer and claimed title. Hoeltzer, however, who had retained possession of the mural for ten years, claimed that he was the rightful owner of the mural. Who has legal title to the mural? Why?