I have come into 3ea Collins Radio Converters. Converter, Frequency CV-856/URC CPN 591-5624-004 NSN 5815-00-687-1666 M41-09/98 B REPACK DLA/02 2ea are still in CLASS A pack and the third was opened to inspect. It looks like used reworked module. Taged MOD LOW MARK. Anybody interested? RICH WA6KNW