We dig allot of old jars, masons. but this is a first an embossed oneLooks like A ROS or A POS not sure anyone see this one before? NOT IN ANY OF MY BOOKS?
MNJARS is correct , 'ARS' stand for Adam R. Samuels. There are 2 closures, one is a glass stopper marked A. Kline Patd Oct 27 1863. Or a metal stopple with wing nut : J.D. Willoughby Patd Jan 4 1859 GREAT JAR AND GREAT FIND !!
Certainly worth the price of having it cleaned. You should be able to pick up a Kline stopper pretty easily, but a Willoughby stopple will probably set you back more than the $200 value it adds. -Tammy