This is a vintage / antique soda bottle from the Bay City Beverage Company of Bay City, Michigan with the following features: 

-Embossed wording and letters: 

"The Finest / Bay City Beverage Co / Bay City, Mich" on face below neck

"Contents 7 fl oz / registered" at front base

"30  3  2" at back base

- 7 ounce capacity

- tooled crown top

- visible mold lines down the sides

- a few visible air bubbles in the glass

- light aqua colored glass

- approx. 7.5 inches high

NOTE: This bottle includes a chip in the bottom base approximately 2 inches in total length. See photos for details.