who, with intent unlawfully to evade or defeat this Act, or an order of the Minister, or a regulation of a local authority, grants or issues an instrument being in form a licence, certificate or instrument made or issued under this Act, or such an order or regulation, for permitting or regulating the movement of a particular animal, or the doing of any other particular thing, but being issued in blank, that is to say, not being before its issue so filled up as to specify any particular animal or thing;

who uses or offers or attempts to use for any purpose of this Act, or such an order or regulation, an instrument so issued in blank, unless he shows to the court’s satisfaction that he did not know of it having been so issued in blank, and that he could not with reasonable diligence have obtained knowledge of it.