License, verbatimCC0
The Smithsonian Institution: Open Access image dedicated to the public domain under Creative Commons Zero (CC0); usage.access=CC0 on the media record itself.
Giuseppe Barberi, Italian, 1746–1809. Designs for Fountains; Verso: Blotter for a Black Crayon Drawing, Upper Part of a Design for a Pavilion Elevation, 1780–1800. Smithsonian Institution.