Front / Recto
- Title Cloud, Mexico
- Negative Date July 1924
- Print Date 1924
- Medium Palladium print
- Dimensions Image 6 15/16 x 9 7/16" (17.6 x 23.9 cm)Mount
- Place Taken Mexico City
- Credit Line Thomas Walther Collection. Gift of David H. McAlpin, by exchange
- MoMA Accession Number 1910.2001
- Copyright © 1981 Center for Creative Photography, Arizona Board of Regents.
Back / Verso
- Mount Type No mount
The artist; possibly to the artist’s sister, Mary Weston Seaman, and her son ; possibly to Daniel Wolf Inc., New York, January 1981 ; to Ezra Mack, Greenwich, Conn. ; purchased by Thomas Walther; purchased by The Museum of Modern Art, New York, 2001.
 Amy Conger, e-mail to Simon Bieling, December 4, 2006.
 MacGill/Walther 2000, p. 42.
- Format Metric
- UV Fluorescence Recto negative Verso negative
- Fiber Analysis Rag 86% Bast 14%
- Material Techniques Palladium print
This work was determined to be a palladium print via X-ray fluorescence (XRF) spectrometry.
The following elements have been positively identified in the work, through XRF readings taken from its recto and verso (or from the mount, where the verso was not accessible):
- Recto: Mg, Al, Si, P, Ca, Cr, Mn, Fe, Zn, Pd, Hg
- Verso: Mg, Al, Si, Ca, Cr, Mn, Fe, Zn, Hg
The graphs below show XRF spectra for three areas on the print: two of the recto—from areas of maximum and minimum image density (Dmax and Dmin)—and one of the verso or mount. The background spectrum represents the contribution of the XRF instrument itself. The first graph shows elements identified through the presence of their characteristic peaks in the lower energy range (0 to 8 keV). The second graph shows elements identified through the presence of their characteristic peaks in the higher energy range (8 to 40 keV).
- Cultural Hubs Mexico City