{
link: "https://www.loc.gov/pictures/item/2016894293/",
thumbnail:{
url :"https://tile.loc.gov/storage-services/service/pnp/hec/45000/45047_150px.jpg",
alt:'Image from Prints and Photographs Online Catalog -- The Library of Congress'
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}
Scrubbing Research. D.E. Kessler, of the Bureau of Standards is conducting experiments to determine the effect of different washing materials upon marble. Thirty-six pieces of the stone are attached to the big wheel, each piece receiving a ten minute scrubbing.
- Digital ID: (digital file from original negative) hec 45047 http://hdl.loc.gov/loc.pnp/hec.45047
- Reproduction Number: LC-DIG-hec-45047 (digital file from original negative)
- Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
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