Bottle dating machine

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Do the mold seams go all the way from the base to the lip?

Beginning collectors often wonder how to tell the age of a particular bottle.Lettering on the body will give clues to the contents and lettering on the base will give clues to the manufacturer. Is the bottle machine made and aqua- or light green in color? For example, glassblowers still make hand-blown bottles today.Both require more specific research to refine the bottle's date beyond observation of technology. Aqua glass typically dates from the late 19th century to the 1920s. Bottles with a purplish or amethyst hue are made from manganese dioxide glass and date circa 1880 to 1920. Also keep in mind that bottles could have been used and refilled multiple times.The punty rod was used to hold the hot bottle while the lip was formed and finished.The punty rod was dipped into hot glass and attached to the base of the bottle by one of the helpers.

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