President's office, and other administrative functions. Additionally, Cone Chapel is on the building's second floor and seats 300. Cone Chapel features over a dozen stained glass windows and a classic pipe organ. The chapel is occasionally used for commencement ceremonies, lectures, and concerts at the school. Waller Hall sits in the north central part of campus directly opposite of the Oregon State Capitol. The structure is the oldest university building west of the Mississippi River still in use in the United States. In 1992, during the university's sesquicentennial, the United States Postal Service issued a postal card that featured an image of Waller Hall. Featuring a watercolor painting by George C. Warner of Eugene, Oregon, these 19 cent postcards were part of the Postal Service's Historic Preservation Series. Timeline See also Methodist Mission Oregon Institute References External links Historic photos of Waller Hall from Salem Public Library, including the 1891 and 1919 fires Cone Chapel's pipe organ 1867 establishments in Oregon Buildings with mansard roofs National Register of Historic Places in Salem, Oregon Renaissance Revival architecture in Oregon School buildings completed in 1867 University and college buildings on the National Register of Historic Places in Oregon Willamette University buildings