Government architect Walter Liberty Vernon was responsible for public buildings such as the Mitchell Library, the Art Gallery of NSW, Fisher Library and Central Station — all pretty impressive works. But what I like most is his introduction of the Arts and Craft style to the design of Sydney’s post offices, fire stations and courthouses. Many feature this distinctive and decorative signage style, and Annandale Post Office, build in 1896, has a particularly fine example — well aged and in excellent condition.