Copy letter from Herbert Rix, to the Cambridge Engraving Company, St Tibbs Row 'Your estimate (£24) for Mr Newton's plates is accepted. I am writing Mr Newton to send you the negatives, & they may then be put in hand. This paper has been delayed by the unsatisfactory attempt of another firm to produce the plates, I sh [should] be glad therefore if you would press it forward as much as consistent with good work'. 31 July 1893