opposite corners of the overlay and label each with the proper grid coordinates (see figure 1-2).
Figure 1-2. Marking overlay registration marks
The grid registration marks show the receiver of the overlay exactly where it fits on his map. Without
them, he will have difficulty in orienting your overlay on his map. You must include at least two grid
registration marks, and they must include the grid identifiers (coordinates).
b. Plotting and Symbolization. Plotting and symbolization of the details are essential. When
plotting, use standard color pencils or markers where possible. Otherwise plot the activities or
information with a pen or pencil that makes a lasting mark without cutting your overlay material.
(1)
Use standard symbols. Use standard topographic or military symbols whenever possible.
You must annotate nonstandard symbols in the legend of the overlay. Since overlays supplement orders
and reports, the recipient has the identical map. Therefore, you need only show the detail directly
concerned with the report. To assist you in keeping your overlays clear and concise, the Army uses a set
of standard military symbols. The Army developed this set of symbols from the North Atlantic Treaty
Organization (NATO) Standardization Agreement (STANAG) 2019. Appendix B of this subcourse is a
comprehensive description of the standard system for military symbols.
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SS0529
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