In lower left corner: R.H. Available also through the Library of Congress Web site as a raster image. Includes index to points of interest, view of "Placerville, 1851, reproduced from early sketch," and ill. of buildings in margin. PM3
Roethe, L.
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/86690598/">https://www.loc.gov/item/86690598/</a>