Winston Churchill 78s value

Hi folks, I have just picked up two 12 inch HMV recordings of Winston Churchill speeched dated 1940. Both in excellent condition. Can anyone give me an idea of value. Thanks

Gary

I recently picked up a 1932 speach by the prince of wales on ebay. I paid the opening bid of $20 and was the only bidder.
I guess these would be worth about the same.