Mandolin for sale - 1923 Regal Style A Mandolin

I have a near-perfect condition 1923 Regal Style A Mandolin for sale, has 8 strings and looks like it's never been touched. Based on research on the net I've only found a few of these and based on those I'm asking $500 for it or best offer. Here is the link to it on ebay, please email me or contact the person on the ebay page if interested, thank you.