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5MM GRAPH & HEX Book (GMS 10428)
Each 8-1/2" x 11" book provides 32 imprinted (front and back) 11" x 17" sheets. 5mm hexes are on one side and graph paper is on the reverse of each sheet. Because these are printed in red, black, green or blue, GMs can use the colors to differentiate countries, dungeon levels and so forth.
These are original printings from the days before the worldwide web.