Broken Bottle Bottom

Hi, I live in Portsmouth, NH and my house was built in the 1850s. My dog dug up this old bottom of a glass bottle and I've tried to google it to determine the age based on the label, but no luck. I thought maybe it was from Asheville, N.C., but the visible letters are "shevlle." Just hoping someone could help me out. I know it's not worth anything, I'm just curious. Thanks!! Jill