Show USED MAILS FOR SWINDLING fraudulent ut derer t ng concerns ra ded by ch cago officers chicago ills several underwriting companies which are alleged to be the largest fraudulent concerns of the bind ever operated in chicago were raided here on tuesday by united states marshals by postal inspectors and seven men accused ot promoting the fraudulent enterprises were arrested accord ng to the fed eral authorities the men accused of operating the swindles had many vie tims and obtained nearly 1 by the scheme |