I just listed this matchbook on ebay; I had never seen one before. It shows the address of The Shamrock Hotel as 600 N Main Street, with a 4-digit phone number of 2200. Does this mesh with the other address for The Shamrock of 614 N. Main Street? I know there has been a question for years as to the origins of the Shamrock Hotel HCE-mold chips. Does this help any, or creates more questions? Multiple addresses were common in the old days, so this could be one example. I love the "Shillalah Room" graphic! I don't collect matches, so I've just put it on ebay; you can follow the link below to my ebay auctions. I've also just listed the Trocadero in the scan; I think I'll put that in a seperate post as this one is getting long. steve