Signedon light box: Logan Electric Specialities
ProvenanceThis object belonged to Edwin H. Land and came from the Rowland Institute, Harvard University. Gift of the Edwin H. Land Family.
Related WorksEdwin Land, "Vectographs: Images in Terms of Vectorial Inequality and Their Application in Three-Dimensional Representation," Journal of the Optical Society of America 30 (1940): 230-238.