If the bill as a non-drawer acceptor or indorser signature of the party 's share has until the contrary is proved be presumed that the person on grounds of effective and unconditional delivery .

如汇票非作为出票人、承兑人或背书人签名之当事人所占有，在有相反证明之前，应推定为由该人有效和 无 条件 交付。

Where a bill is no longer in the possession of a party who has signed it as drawer acceptor or indorser a valid and unconditional delivery by him is presumed until the contrary is proved .

如汇票不再由签名之发票人、承兑人或背书人占有，除能提出反证外，可推定其已作有效及 无 条件之 交付。