Here we have for sale a New Old Stock Genuine Lucas 608 Interior Dipping Mirror. Comes as can be seen in its original Jaguar Box with original protective raping. I consider this to be in Mint Unused Condition, must be the best available. Alas i do not know which model it fits, it may be universal for Jaguar Cars of the period, The Jaguar part number on the box is C16407 if that helps but i am sure you Jaguar Owners will know and it has the adjustable stem length so you can adjust the length
eBay