Letter from David Williams to C Jones (Cutter) - re suspect batches of Koate. C1090, NC8160, NC8185, NC8184. From the quantity involved, have a major problem. Desperately short of good stock but dare not sell new batches without first obtaining NIBS clearance. Two major customers, Oxford and Newcastle, are reluctant to trust our assay figures and are instating on their own check prior to acceptance.