I purchased a box lot from a local auction last weekend and within the box was a large 9x12 envelope which had 24 signed index cards.  I was able to identify 6 of them, however there 18 I have no clue with.  Any help would be greatly appreciated.  The only information I could find based on date on the back of one card is that they were obtained in the mid 70's to guessing the late 80's.  I will be adding photos on different discussion pages.