Article L131-22 of the French Monetary and Financial Code
The holder of an endorseable cheque is deemed to be a rightful bearer if he proves his right by an uninterrupted series of endorsements, even if the last endorsement is blank. Crossed-out endorsements are deemed to be unwritten. When a blank endorsement is followed by another endorsement, the signatory of the latter is deemed to have acquired the cheque through the blank endorsement.