_USNM 604672 (S-K 819). Figure 165._
[Illustration: FIGURE 165]
The plate on this cap uses only the shield of the Pennsylvania seal
without crest or supporters. It is surrounded at the sides and bottom
with a wreath carrying a ribbon with the unit designation "first
artily." Equally interesting and unusual is the small separate
insignia at the pompon socket. It is based on the 1840 flaming grenade
ordnance device with crossed cannon superimposed.