This premium marketing data is an assemblage of selective investors who take interest in the collection of rare stamps and gold or silver coins.  The active investors encompassed in this mailing list with optional opt-in email addresses have either purchased or have expressed an interest to purchase investment grade stamps and/or coins.  All marketing data points are audited and double verified each month through 2 or more organic sources ensuring superior accuracy and a receptive and responsive audience.  These enthusiasts are knowledgeable in the field of numismatics and rare stamps.  These individuals mainly purchase stamps and coins for investment purposes and many are in search of particular items to complete existing collections.