1. Rubin Saltzman Regarding Amalgamation Committee Between Slovaks and IWO, December 1930 (correspondence) Collection: International Workers’ Order (IWO) and Jewish People's Fraternal Order (JPFO) Location: New York, New York, United States Date: 1930-12-04 Format: Image Creator: Zaltsman, R. (Reʾuven) (Rubin Saltzman, Reuben Zaltzman) Organization: International Workers Order