Ontario Archaeology Guide

“Historical” After 1890 Canning jar with ground finish and metal fastener Crown bottle finish Colourless bottle finish with external threading Porcelain electrical components Wire nail ↔Semi-porcelain becomes ubiquitous, it is very white with a dense paste and a glossy glaze, technological advancements mean that many types of transfer designs proliferate in many different colours, including overglaze decals and gilt Bright “7-up” green is a 20 th century glass colour Patent medicine become very popular after the 1880s