Another early type of soda and mineral water container was the round bottom or torpedo style bottle. These vessels were sealed tight with wired-down corks—they had to be, because the shapes of their bottoms meant the bottles were usually stored on their sides. A rare variation of the round bottom bottle was the club or tenpin bottle, which had a flat spot on its base.

Round and torpedo bottles had what are known as blob tops. The blob at the top of the bottle was applied separately to the bottle and enabled the bottler to seal the bottle’s contents with a swing-type enclosure, which was secured tightly below the blob.

Beginning in around 1860, mineral water and soda bottles with internal stoppers appeared. These bottles were longer and narrower than the squat bottles that had come before, and they virtually lacked necks.

There were several types of internal stoppers. The simplest was a gravitating stopper, which consisted of a glass stopper that plugged the bottle’s top with the help of a rubber seal.

A second type of internal stopper was the Hutchinson spring stopper, which was far more common than gravitating models. In a Hutchinson, the stopper inside the bottle was attached to a thick wire loop or spring that could be accessed from the top of the bottle. When the loop was pushed down, the bottle’s contents poured out. But the stoppers were difficult to clean, so by the beginning of the 20th century, they were no longer in use.

Use of Codd style bottles was also widespread for mineral and soda water in the latter part of the 19th century. The contents of Codd style bottles were sealed from the elements by a hardened glass ball or marble, which was inserted into the bottle and then trapped inside during the manufacturing process. The ball sealed the bottle by being forced against the inside of the bottle’s neck due to pressure from the bottle’s contents. A special tool known as a Codd opener was needed to get at the liquid inside.

The invention that eventually pushed other stoppers aside and changed the look of antique mineral and soda water bottles was the crown cap closure, which is similar to the bottle closures we are familiar with today. Patented in 1892, crown caps were not popular at first with bottlers, who were required to invest in new bottles and machinery. As for customers, they distrusted crown caps as a newfangled invention whose promise was probably too good to be true.

By 1905, fewer than 25 percent of all U.S. bottlers were using crown-cap technology, but that was the year the Owens Automatic Bottle Machine debuted—by 1912, the conversion to crown caps for soda was pretty much complete. For collectors, most surviving soda bottles from the early crown-cap era were produced for Coca-Cola or Pepsi, though bottles for many smaller soda brands can still be found.

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