De La Rue on March 2005 Sequoia was sold to Smartmatic, a multi-national technology company which had developed advanced election systems, voting machines included. In 2003, the company acquired the Debden-based banknote printing operations of the Bank of England. In 2003 and 2004 the company supplied banknotes to Iraq. The company was recognised by Hermann Simon as a role model for other small- to medium-sized businesses in his book "Hidden Champions". The Highest Perfection, a history of De La Rue was published in 2011. Written by Peter Pugh for De La Rue, it covered the years 1712–2003. In August 2014, the company announced
Warren De la Rue memoirs, entitled "Researches on Solar Physics", published by De La Rue, in conjunction with Professor Balfour Stewart and Mr B Loewy, in the "Phil. Trans." (vol. clix. pp. 1–110, and vol. clx. pp. 389–496). He took some of the very first photos of the moon, so he got a crater named after him the "De La Rue (crater)". In 1860 De La Rue took the photoheliograph to Spain for the purpose of photographing the total solar eclipse which occurred on 18 July of that year. This expedition formed the subject of the Bakerian Lecture already referred to. The photographs obtained