The size of the various beads and pins can be determined by measuring on the above picture with an ordinary ruler, as the articles are shown in their exact size

4. A celluloid flag, with beads above the flag to represent quantity, or beads in different colors to denote various characteristics for the data portrayed. The grip of the sheet celluloid on the pin is sufficient to hold both the beads and the flag at the upper part of the pin.

5. Long pin with large size glass head, obtainable in different colors.

6. Pin like that shown in No. 5 used with beads strung upon it.

7. A brass tack large enough to receive gummed labels which may be written upon with a pen.

248 GRAPHIC METHODS

8. Map pins having sharp points and small spherical glass heads in contact with the map. These pins are available in many different colors; the upper one in No. 8 is red and the lower one blue.

9. Beads in various colors of a size to correspond with the map pins in No. 8. Here the beads were red. White beads, used for every tenth position, show at a glance that there are 22 beads on the pin. Note that the color red photographs as black.

10. Map pins having sharp needle points and spherical glass heads in contact with the map. The pin is of the same general style as No. 8 but it has a head of larger diameter. This pin is obtainable in many colors.