COBOL 85 is a language standard, developed by the ANSI COBOL committee. You will not find a "COBOL 85" compiler -- you will find compilers that support, to one degree or another, the COBOL 85 standard. This standard added features such as END-IF, END-PERFORM, END-READ to COBOL; prior COBOL language specifications did not include these features.
VS COBOL II is a COBOL compiler developed by IBM. The last version of this compiler was withdrawn in March 2001 and IBM has not let anyone order it for almost 11 years now. Hence, you are talking about ancient (in computer terms) history at this point. VS COBOL II supported (in versions 3 and 4, at least -- the earlier versions would recognize but not necessarily compile) the COBOL 85 standard.