Notwithstanding any other provision of this part, where a document has been copied by means of a photographic or other machine which produces a facsimile copy of the document, the copy is, upon proof to the satisfaction of the court that the copy was taken or made from the original document by means of the machine, admissible in evidence to the same extent as the original document would be admissible in evidence without—
(a) proof that the copy was compared with the original document; and
(b) notice to produce the original document having been given.