The "1904 Annual Report of the Board of Regents of the Smithsonian Institution" is a hardcover book published in Washington by the Government Printing Office. It is an illustrated and string-bound reference book, printed in English in the United States. The report provides valuable insights into the activities and achievements of the Smithsonian Institution in the year 1904, making it a significant historical document for collectors and researchers interested in the institution's work during that time.