Tob lists a Pony & a Porter as B. S. Y. & Co from Summit Hill Pa., there are no pics though. If they are from the same company(I think an 'S' may be in the one you show) I'd think it would be Y.B.S. Co. considering the size of each letter... Hope this gives a little insight Cookie...
Sorry for the first post but it's listed as a Yuengling Brewing Co. out of Pottsville Pa.. Here's a pic of a short blob from Larry Grotz on hutchbook.com...
Hmmm that's a puzzler. I have a yuengling hutch that is a hutter bottle so we can help that theory a bit there. Where was the bottle found? Yuengling was made in ny n pa at the time of this bottle.
Also at the Pottsville brewery they have LOT of their bottles on display with dates as to usage.
Well worth the trip n tour.