Chinese canal locks double control gates
Black and white lantern slide of a Chinese canal lock with two gates.
circa 1918-1921
In Copyright
Grand Valley State University. University Libraries. Lemmen Library and Archives
Merrill_LS00150
image/jpg
Image
eng
Merrill, Robert H., 1881-1955, “Chinese canal locks double control gates,” Digital Collections, accessed November 21, 2024, https://digitalcollections.library.gvsu.edu/document/52608.