I looked through www.ebay.co.uk trying to find this. But there are quite a few people claiming to have rare first editions with various errors in them. So if anyone's interested in buying this one they'll have to find it themselves. I give up.
I think you need to watch out for "first edition, second issue" - meaning it's the first edition, but the second time they've printed it (in this case, without the error)... I don't see why people'd want an incorrect book so much, but hey...
Some people'll are selling the same edition I have for, like, 50 pounds I'm-a thinking how much money I could make off this one...
"I'm for it so we can put Nuclear power plants up there, and then beam the power back to earth on a laser beam." ~ Whidden