Section 157 - Presumption as to date of documents.

When any document bearing a date has been proved, it is presumed to have been made on the date it bears and if more documents than one bear date on the same date, they are presumed to have been executed in the order necessary to effect the object for which they were executed, but independent proof of the correctness of the date will be required if the circumstances are such that collusion as to the date might be practised, and would, if practised, injure any person or defeat the objects of any law.