Barometers Realm

The company Brush & MacDonnell, founded in New South Wales, Sydney in the 1850s, initially specialized in jewelry, optical instruments, and scientific equipment. In 1857, the firm opened a branch in Melbourne, which later became an independent company known as S. Brush and Company, while the Sydney branch came under the management of William MacDonnell and was renamed W. MacDonnell & Co. in 1867. Over time, the company’s focus shifted significantly: jewelry production was discontinued, and attention was directed toward watchmaking, importing, and the creation of optical and scientific instruments such as barometers, thermometers, hygrometers, compasses, telescopes, microscopes, and theodolites.

W. MacDonnell & Co. not only manufactured its own instruments but also served as an agent for the renowned British company Negretti & Zambra, which specialized in optical and scientific instruments, and represented Tann, a maker of fireproof safes. Thanks to the high quality and reliability of its products, the firm enjoyed an excellent reputation throughout the colonies. The company ceased operations around 1891, leaving a significant legacy in the history of Australian science and craftsmanship.