These 2 jars date 1896 - 1910.  So they are officially antiques!  Soft shoulder describes the way the cap sits on the shoulder of the jar.  This preceded the Perfect Mason style.  The dropped a and triple loop are very early script for the jars.  The Zinc caps have intact glass liners and show wear and aging.  The bottoms have mold marks of 11 and 0.  Many uses include storage, bedside lamps, and display.