Marketing and Advertisement is the key to building a strong customer base. And of course such is the case in the sports and entertianment arenas.  There is a vast spectrum of promotional, community and public relation activities that are undertaken to establish in-roads to the perspective markets in which thses entities ar focused.  Often local groups, organizations  are called upon to participate in activities to spur interest. Such groups called upon are but not limited to military representation to include active, reserve and national guard units, Boy and Girl Scout troops, civic clubs and organization and the such.  As in any organized function, there is managemen and leadership in some circles known as Centers of Influence (COI's). These COI's are the ones who by and large arrange for the providing of Color Guards, personnel, resources and even facilities whereby the sport anentertaiment entities can conduct their activities. It is also these same  Centers of Influence (COI's) that are often times privy to a vast amount of vintage memorabilia.  By and large a majority of these Centers of Influenc (COI's) focus is on the enhancement of their respective endeavos and not that of obtaining the various forms of memorabilia they may accumulate.  It is when thse particular individuals aquire a surplus of items in which they are willing any many times wanting to be relieved from have to keep.  It is this  FIRST HAND RESOURCE who's items are as viable and credible to any COA (Certificate of Authenticity) that can be obtained.  This resource can be quite reliable in that the sports and entertainment entities try for the most part to utilize the same resources on a continual basis. Getting to know these COI's or even to that extent; possible being associated with the COI's organization and/or its activities has the potential of positivedividends.  COI's are a great source to the ability to present items with confident COA's