This is what the finds from one of my typical digs look like. Most bottles date from the 1910's-1920's. It is difficult to break through to the 19th century, as I'm sure most of us already know the mass production of the early 20th century lead to alot of cheap and disposable glass.
My son and I found a huge pile of old bottles and trash in a ravine recently. In the ravine, the stuff on top seems to not be terribly old; possible stuff form the 70s~80s. At another spot nearby there was a pile of bottles and brick where we found a handful of 1920s~1930s bottles; however, the...