Thank you for making your question to JustAnswer. My name is*****'m an Antiques Expert and I will try to help you with your particular inquiry. Please, don't hesitate to contact me any time or to make follow up questions if needed.
Clementine Churchill (1885-1977) married future British Prime Minister Winston Churchill in 1908 and remained his companion and confidante until his death in 1965. A recent collection of their letters, assembled by daughter Mary Soames (1999), reveals that "Clemmie" took an early and active interest her husband's politics. Their five children also included writer Randolph Churchill (1911-1968) and actress Sarah Churchill (1918-1982)
Regarding the value of your item, I have just perform a market research of similar sold items as yours. I performed the research based upon the most recent finished auctions and private sells, so the value given is the real market value of your item. This is the only way to know the exact value of your unit.
The value will be in the range of 350-480$.
Please, use the stars to rate my answer or let me know if I can help you any further!