COOK INDUSTRIES v. TRADAX EXPORT S.A.
                                                                    [1983] 1 Lloyd's Rep 327
                                                                    QUEEN'S BENCH DIVISION(COMMERCIAL COURT)
                                                                    Before Mr. Justice Lloyd
                                                                    
Sale of goods (c.i.f.) - Non-delivery - Prohibition of export - July and September instalment of contract - Sellers failed to deliver balance - Whether sellers could rely on prohibition clause - Whether all shippers prevented from performing their contracts.