HC Deb 25 April 1939 vol 346 c1099

Resolved, That the drawback of customs duty heretofore allowed in the case of goods manufactured in the United Kingdom and exported or shipped as stores there from, in respect of linseed used in the manufacture thereof, shall not be allowed except in the case of unmixed linseed oil, that is to say, linseed oil not mixed with any substance other than driers.