Bank of England 10s note longer and narrower, and were the first ten-shilling notes to feature a portrait of Queen Elizabeth II on the front. The reverse design incorporated the logo of the Bank of England. In the late 1960s it was decided that future banknotes should feature a British historical figure on the reverse. The first such note was the series D £20 note, first issued in 1970, featuring William Shakespeare. A design for a ten-shilling note featuring Walter Raleigh on the reverse was approved in 1964 but was never issued. Instead, in 1969, as part of the process of decimalisation, a new fifty
Bank of England £10 note tradition of portraying historical British figures on the reverse continued with the E series, first issued in 1992, with an image of Charles Dickens appearing. Series E notes are multicoloured, although they are predominantly orange-brown. From series E onward Bank of England £10 notes feature 'windowed' metal thread; this thread appears as a dashed line, yet forms a single line when held up to the light. The revised Series E £10 note was introduced in 2000. It features a portrait of Charles Darwin on the back as well as an illustration of and images of various flora and fauna. The