Birger Sandzen (Swedish/American, 1871-1954). Lithograph on paper titled “Summer Twilight” depicting a grove of trees overlooking a river. Pencil signed along the lower right and titled along the lower left. Sight; Height: 11 1/2 in x width: 14 1/2 in. Framed; Height: 19 1/4 in x width: 23 1/4 in.