V and H Projection for lat and long transform to the V[ertical] and H[orizontal] coordinates used for wired telephone (AT&T). Created by Jay K. Donald of AT&T in 1957 to simplify the calculation of distance between telephone rate centers. The system is based on Donald Elliptic Projection. It is a two-point equidistant projection for the continental United States and Canada. It uses units of the square root of one-tenth of a mile.
The "VandH" Projection has no Parameters.