United States Works Progress Administration (New York, N.Y.)
Tables of grid coordinates ... computed ... by the Project for the computation of mathematical tables ... The basic formulas upon which the tables have been developed are from Special publication no. 59, U.S. Coast & Geodetic Survey.--Pref.
The purpose of this summary is to compile, consolidate and present useful data to commanders and staff officers in such a manner as to be of maximum use in planning and management.
These instructions are published for information and guidance of personnel responsible for organizational maintenance of the computer, gun direction M18.