These are examples of maps issued by The Long Oil Company.
If you know of any others please let me
know.
Some images are courtesy Jim Masson, Walt Wimer and Tom Allen.
This map was issued between 1920-1924 by the Shedd-Brown Mfg.
Co. It has a cardboard cover.
This map was issued in 1925 by the Rand McNally Map Co. It has a
cardboard cover.
This map was issued in 1927 by the Rand McNally Map Co.
This map was issued in 1928 by the H. M. Gousha Map Co.
This map was issued in 1929.
This map was issued in 1930 by the A. L. Langwith Map Co.