J.B. Kelly & Company
James B. Kelly and John H. Garnhart appear to have had both New York and Saint Louis addresses. Their primary business was wholesale liquor and manufacture of vinegar, and Kelly's Old Cabin Bitters was likely to have been mostly alcohol.
The Kelly proprietary stamp was first issued in March of 1864, and last issued on December 3, 1870. 445,125 were issued, all on old paper. The item on the right is a plate proof.