Sir Cyril Humphrey Cripps DL (2 October 1915[1] – 14 April 2000) was an English businessman and a philanthropist.
Humphrey Cripps was educated at Northampton School For Boys and studied Natural Sciences at St John's College, Cambridge.
Whilst Howard Clayton-Wright was purchased in 1979 and became Pianoforte Supplies Plastics, PSL ceased to produce piano parts in 1980.
Although the firm made a significant number of parts for other industries such as aerospace and white goods,[3] PSL saw a decline in its work over the succeeding two decades.
In 2011, the auction firm of Spink & Son in London began a series of sales of his so-called Chartwell Collection,[7] which stretched to fill 84 stamp albums.