Copy letter from an unknown correspondent, to Messrs Harrison & Sons 'Herewith a parcel of blocks, three sheets of 'copy' and proofs of locks, all belonging to Mr Dines's paper. Please put up the planatory lines on 'copy' of the figs & then return the 'copy' to me. Let [sic] have proofs of the paper with cuts as soon as convenient.' 21 July 1890