Historical information

A Mason jar is a moulded glass jar used in canning to preserve food. The mouth of the jar has screw threads on its outer perimeter to accept a metal ring (or "band"). The band, when screwed down, presses a separate stamped steel disc-shaped lid against the rim of the jar. An integral rubber ring on the underside of the lid creates a hermetic seal to the jar. The bands and lids usually come with new jars, and bands and lids are also sold separately; while the bands are reusable, the lids are intended for single use when canning.The Mason jar was invented and patented in November1858 by Philadelphia tinsmith John Landis Mason. The same design was used on the jars well into the 1900's

Significance

The early settlers of Moorabbin Shire had to be self sufficient and grew their own fruit and vegetables even if not market gardeners They preserved their produce for use all year.

Physical description

A clear, glass jar with a metal screw top lid used for preserving food c1900. This jar has a 'keystone' symbol.

Inscriptions & markings

'keystone' symbol / MASON'S / PATENT / NOV 30TH / 1858

base 67. PAT NOV 96