Historical information

This handmade green glass bottle was made using the turn-moulded or rotated-moulded method, a variation of the mould-blown process. The bottle has the remnants of a cork seal in its mouth. It possibly contained ginger beer, soda or mineral water, flavoured drinks, liquor or wine.

TURN-MOULDED BOTTLE production method

This bottle was handmade using the ‘turn-moulded’ process, one of a variety of mould-blown processes that followed the earlier mouth-blown method. The maker would add a portion of hot soft glass to the end of his blowpipe then blow air through the pipe while placing the end inside a bottle mould. The mould was then turned and twisted, giving the bottle a round, seamless body, and usually a round indented base.

The cooled body of the bottle would then be finished with the addition of an applied top. A small amount of soft glass would be applied to the top of the bottle and a lip would be formed using a tooling implement. A concentric ring would also form below the lip, caused by the rotated lipping tool.

The bases of bottles made with the turn-moulded method were generally not embossed but would commonly have a mamelon or ‘dot’ in the centre of the base.

SEALING THE BOTTLE

After filling this type of bottle with its contents it is then sealed with a straight, cylindrical cork with the aid of a hand operated tool called a bottle corker. The bottle corker compresses the cork as it is driven into the bottle. Once inside the bottle the cork expands evenly into the opening to tightly seal the contents – the denser the cork the better the seal.

Significance

This turn-moulded glass bottle is made distinctive due to its round seamless body and indented base.

Physical description

Bottle, dark green glass. Handmade turn-moulded bottle with seamless body and tooled lip. Deeply indented base has push-up mark with a ‘mamelon’ bump in the centre. Bottle is straight from base to half height, then tapers to a shoulder over the next quarter, than almost straight up to the mouth. There is a portion of cork in the bottle’s mouth and dry remnants in the bottle’s base. Possibly used for ginger beer. Produced in 1880s to 1910’s.