Thank you for the info.Wow that is a very nice bottle! Apparently C. Island is now Cape May, New Jersey. It probably dates to around the 1850s or so.
My grandmother dug it up in the 50s. She saved all her finds wrapped them and brought them with her from New Jersey to Maine in 1980.That style pontil mark is typically about 1855-1865. Nice find
Wow that's cool. ThanksFound this. A little dated but it's some more info http://bottleden.com/APS2/aps_more.php?search_fd0=1572
Also, they made this bottle in a dark green. Look at that color! Wow http://bottleden.com/APS2/aps_more.php?search_fd0=1573
I will put more on.Would love to see what else she found - that’s a cool one