I was just curious as to whether or not a Cut Gem Mint 10 Alec Guinness Autograph dated 1971 (pre-star wars) would be worth more or less than a cut post-Star Wars Alec Guinness autograph?
I've seen Alec Guinness items over the years go for as little as $20 in a non Star Wars role. Star Wars items signed by him command significantly more money and can go for very high prices depending on the type of image etc.
I must say that I'm amazed how much a Star Wars' Guinness can go for. I'm pretty sure that I saw one go at a recent "physical" auction for over £1,000 and there is one being auctioned tonight that is already at $1,100:
As you will see from the link above the final price was $1,570. Seems incredible to me but then I'm often surprised at the premium some people will pay for what an autograph is on.