- 1Letter to F.R. Harris from W. Bailey concerning Harris' paper 'The Parsons Centenary - a hundred years of steam turbines. (YA1999.39/1/64)
14 March 1997, item - 2Letter to F.R. Harris from W. Bailey concerning Parsons and the Royal Aircraft Establishment at Pyestock. (YA1999.39/1/65)
13 April 1997, item - 3Letter to F.R. Harris from W. Bailey about Parsons and the Royal Aircraft Establishment at Pyestock. (YA1999.39/1/66)
15 May 1997, item - 4Letter to F.R. Harris from W. Bailey about Bailey's time at the Royal Aircraft Establishment. (YA1999.39/1/67)
28 May 1997, item - 5Letter to F.R. Harris from W. Bailey about the history of the jet engine and the Royal Aircraft Establishment. (YA1999.39/1/68)
28 May 1997, item
