This is a beautiful 12-sided bitters with hand tooled ring top and beveled shoulders. It's uncommon to find this "Carter" variant of this bottle. It's in attic found condition with remants of the label on the back side (that's not dirt in the pics).

Embossed: ATWOOD'S // JAUNDICE BITTERS // M. CARTER & SON // GEORGETOWN // MASS.

Height: 6 3/4" 

Color: aqua