Looks like the listing has been updated:
"*3/24/2011 - Please note questions and answers; I received a comment from a buyer stating this is not a real Kamaka. I know nothing about Ukuleles and described only what is marked on the Ukulele."
And they posted the Q&A:
"Q: You DO know that this isn't a REAL Kamaka?? Kamaka never made ukes w/Yamaha, Japan. This is a FAKE, perhaps an example of the ukes that Kamaka sued for copyright violation. Mar-24-11
A: No, I wasn't aware that this wasn't a real Kamaka. I don't know anything about Ukuleles and was only going by what is on the Ukulele. This was part of an estate that we are trying to liquidate. Thank you for your input."
At least the seller is honest and includes this information on the listing.