World's Fair instrumental folio
Washington University Libraries reasonably believes that this item is not restricted by copyright or related rights, but a conclusive determination has not been made. You are free to use this item in any way that is permitted by the copyright and related rights legislation that applies to your use. Washington University Libraries does not assert copyright in reproduction scans of public domain materials made openly available on its websites. For more information on policies and procedures governing the use of materials, contact email@example.com.