Pearl S. Buck International will offer two paintings once owned by the Nobel and Pulitzer Prize-winning author to raise funds for a renovation of her historic house in Hilltown, Penn.

Buck's landscapes, by well-known Pennsylvania impressionist Edward W. Redfield, are together expected to fetch up to $500,000 at auction.

The paintings have recently been kept in storage at the James A. Michener Art Museum in Doylestown, Penn. The museum has occassionally displayed the works. Copies were hung in Buck's house, on the National Register of Historic Places, which is undergoing $1.6 million in renovations.

“Spring” and “The Canal at Lambertville,” were acquired by Buck (1892-1973), who knew Redfield (1869-1965), one of the founding members of the New Hope artists’ colony in the early 1900s.

The paintings will be offered on Dec. 4 at Freeman’s Fine American and European Painting and Sculpture auction in Philadelphia. “Spring” is expected to go for $200,000 to $300,000. “The Canal at Lambertville” is estimated to sell for $150,000 to $250,000.