Current Dean of Westminster, The Very Reverend Dr John Hall, said: “It is kept very safe in the Deanery, in a very hidden place in a little box here, which has in it a flask containing the oil from 1953.  And it is not just olive oil, it’s quite a complex mixture of different things.

“This is the recipe for the Coronation Oil. The composition of the oil was founded upon that used in the 17th century.  

“Then you see what it consists of sesame seed and olive oil, perfume with roses, orange flowers, jasmine, musk, civet and ambergris.”

Tonight, for the first time, that mysterious process will be revealed to the general public, as the Dean of Westminster allows the sight of the the anointing oil and its ornate bottle to be broadcast.

The solid gold ampulla, shaped like an eagle, is usually hidden carefully in Westminster Abbey, and with the moment of anointing deliberately cut from the Queen’s 1953 Coronation.

http://www.telegraph.co.uk/news/2018/01/14/secrets-oil-used-anoint-queen-coronation/