By the end of the 1960s Penguin was in financial trouble, and several proposals were made for a new operating structure. These included ownership by a consortium of universities, or joint ownership by the Cambridge University Press and Oxford University Press, but none of them came to anything. Sir Allen Lane died on 7 July, and six weeks later, Penguin was acquired by Pearson PLC on 21 August 1970. A new emphasis on profitability emerged and, with the departure of Facetti in 1972, the defining era of Penguin book design came to an end. Later changes included the disappearance of 'Harmondsworth' as the place of publication: this was replaced by a London office address. From 1937 the headquarters of Penguin Books was at Harmondsworth west of London and so it remained until the 1990s when a merger with Viking involved the head office moving into London (27 Wrights Lane, W8 5TZ).