No known copyright restrictions.
No known restrictions on use.
Buffalo, N.Y :
Buffalo Electrotype and Engraving Co.
Map of the globe stretched and flattened into a circular plane.
Includes longitude and time calculator and diagrams showing June and December solstices.
Border shows "sun-time in minutes."
Text on verso.
Patent claim US497917: https://www.google.com/patents/US497917