3.  As regards any property situate in the United Kingdom belonging to or held or managed at the date of this Order on behalf of any person to whom this Order applies and as regards any property arising presently or at any future time out of such property this Licence shall not, except in the case of anything done under an authority, given generally or specially by, or by any person authorised in that behalf by, a Secretary of State, the Treasury or the Board of Trade, extend to or authorise any trade in respect thereof.