I am an avid State Quarter collector and am desperately searching for "Philadelphia Mint" Quarters in particular. All the State Quarters were either minted in either Denver or Philadelphia. You can tell where the quarter was minted by looking on the Heads side of the coin and on the lower right section there will be a tiny "D" or a "P". Since I am a west coast resident we mainly see coins that were minted in Denver only way we see Philadelphia mint coins is from coins that migrated by east coasters bringing them this way. If there is anyone who is a collector such as I; I would love to become a trader with you. If anyone is open for trading or even starting a collection, please contact me and we can talk. Hope to hear from ANYONE soon.