Chris First off, you will find this page to be helpful - it identifies 11 variants of the Yuengling beer bottles known http://brucemobley.com/beerbottlelibrary/ny/newyork/yuengling.htm Your bottle is later 19th c. 1880s or thereabouts. One auction does not definitively equal value but this should be helpful https://www.ebay.com/itm/Antique-D-G-Yuengling-Brewing-Co-NY-Blob-Top-Bottle-Aqua-Blue-/302668785067