Offered for sale on eBay is a possibly unique post card signed by Elvis and posted on January 15th 1955 (using a 2 cent stamp). It is addressed to Al Robinson KSYL Alexandria La. The post card was taped in Al's scrap book so there are some tape marks on the edge. Robinson tells the story about the postcard and about the only booking of an Elvis show he ever did (for 165 dollars) on the eBay listing.
The post card reads
Your a heart breaker if you don't help me with my "Milk Cow Blues Boogie."
Thanks Elvis Presley"
In case you're wondering; the itemnumber is 330303498726, bidding begins at 250,000 $US.