This is found at the top of a letter from a debt recovery office in the Swiss canton of Vaud (Office des poursuites) advising a debtor that his requisitioned assets are to be put up for sale. No translation that I can come up with makes any sense in the context. 'Copy followed-up'? 'Actionable copy'? Or is something else meant by 'exemplaire' rather than 'copy'? I would very much appreciate any ideas asap.