No, I'm not the seller, but I don't recall having seen anything like this before. It's the original mockup for the b-side label of an "Everyday Is Like Sunday" promo 12". A one-of-a-kind item.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310115699180
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310115699180
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