These charts are from the 1968 Easton Catalog. If you can't read all of the charts, I can double check parts for you.
(http://img.photobucket.com/albums/v134/oldearcher46/EastonArrowChart1968a001.jpg)
(http://img.photobucket.com/albums/v134/oldearcher46/EastonArrowChart1968.jpg)
(http://img.photobucket.com/albums/v134/oldearcher46/EastonArrowChart1968a.jpg)