Rain gauge (pluviograph), wood / brass / galvanised iron / glass, made and used by Sydney Observatory, Sydney, New South Wales, Australia, 1860-1900.
Rain gauge (pluviograph), housed in wooden box, painted grey. Galvanised iron funnel fits into top and collects water to a double-acting balance, which activates an indicator. Recording clockwork drum provides a daily graph. Clockwork includes anchor escapement. A piece of timber has detached from the housing and a bottle of ink accompanies the rain gauge.