Here is a super nice example of this variant of the Quaker bitters. This bottle has beveled corners and a crudely applied fat ring top.

Embossed: QUAKER BITTERS // DR FLINT'S // PROVIDENCE, R. I.

Height: 9 5/8" 
Color: aqua

Condition: near mint - structurally perfect, clean, hardly any wear. The black on the lettering is polish that can be easily removed and has partly worn off.

Reference Number:  SH296