Often the art was created based on a grid system.
This grid system was set up in the period 1885-1904.
Long experience had taught the army the value of the grid system.
What the photograph added to the grid system was representation.
How is that with a grid system connected to a whole range of power sources?
The key to the grid system was lost, so the map became useless.
It was based on a grid system corresponding to range values and site numbers.
The name was changed to 118 Avenue in 1914 with the adoption of the grid system.
Access to the grid system at fair prices is crucial.
My whole grid system is really like a brick wall.