Lawdwaz,I do not know either.
I looked around,here's something :
http://www.worthpoint.com/worthopedia/confederate-i-h-anderson-civil-war-bowie-knifeNow if this is a real deal find,you'll need to take your pics & info,and that link,and post it on BladeForums in Bernard Levine's forum.
He will know,or know,who will know
http://www.bladeforums.com/forums/forumdisplay.php?f=691