—(1) In this section and in sections 270 to 277 —
“document” includes, in addition to a document in writing —
any map, plan, graph or drawing;
any disc, tape, sound-track, or other device in which sounds or other data (not being visual images) are embodied so as to be capable (with or without the aid of some other equipment) of being reproduced from it; and
any film, negative, tape or other device in which one or more visual images are embodied so that they can be likewise reproduced from it;
“film” includes a microfilm.
(2) In this section and in sections 270 to 277, a reference to a copy of a document includes —
in the case of a document not falling within paragraph (d) of that definition of which a visual image is embodied in a document falling within that paragraph, a reproduction of that image, whether enlarged or not,
and any reference to a copy of the material part of a document must be construed accordingly.