Vauxhall glass - so-named for the company that produced it, the Vauxhall Glassworks - is a type of mirrored glass produced in the 18th and early 19th centuries as an alternative to gemstones. Vauxhall glass was made in many colors and fashioned into both very elaborate and very simple costume jewelry pieces. Unlike paste, which was used almost interchangeably with gemstones and set into precious metals, Vauxhall glass was typically paired with minimal base metal mountings. This set of Vauxhall glass brooch and earrings are fashioned in the shape of flies with silvery wings and red eyes.