All used and new stock items are bar coded in the hpb data systems, so a phone call to any store will tell you if it is in a store's inventory stock. For you, I just put these search words on eBay, "monster Christmas mash lp 1974". There is Nothing available worldwide on that #1 record seller's site. To the top left, is a heart, "save this search." When the box pops up you can indicate email or push notifications and confirm your choice. The all time best site for record sellers of rare records is there Mike. Those type of items like that rare record are only available at hpb, because hpb acquired used record L.P.s from people who are willing to part with their personal collection. Such a rare record is like a needle in the haystack. Good luck in your search.
Mike, YOU need to call nearest HPB and ask them to search for a store that may have your recoed.
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