U.S. 103rd Cavalry, Troop B Service Guidon.

U.S. 103rd Cavalry, Troop B Service Guidon Pennsylvania National Guard (PNG) unit.
Guidons of this type were introduced for cavalry units in the US Army in 1890 as Service Guidons. Originally intended as a drill and field replacement for the formal silk guidon that was reintroduced 5 years earlier.

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