I did not know exactly were to post this interesting button cover. At the present time, this is all of the information I have

United States Information Service, the overseas name for the (now-defunct) United States Information Agency.
United States Immigration Service, a name sometimes used in the past, possibly both formally and informally at different times, to refer to at least one of the many U.S. federal agencies of the executive branch which have implemented U.S. immigration law. (Today the principal such agency is the U.S. Immigration and Customs Enforcement).

.USIS Uniform Button CoverUSIS Uniform Button Cover