David,,,,,I have a few Louisiana Bonds thru the 1890s but have never seen one of these. George H LaBarre Galleries is a dealer in old stocks and bonds. He has one for sale on his website. A $100 denomination. https://www.glabarre.com/search.php?keywords=louisiana&&nd=99

Is interesting you found one in your family papers. Most likely you had a CSA ancestor and probably a Louisianan.