This building paper model is a Time Ball Station in the Port Lyttelton, a port town on the north shore of Lyttelton Harbour close to Banks Peninsula, a suburb of Christchurch, on the eastern coast of the South Island of New Zealand. The papercraft was created by Phillip Fickling
A time ball is an obsolete time signalling device. It consists of a large, painted wooden or metal ball that is dropped at a predetermined time, principally to enable navigators to verify their marine chronometers from their ships offshore. Accurate timekeeping is one means by which longitude can be determined at sea.
You can download the papercraft model template here: Lyttelton Time Ball Station Free Building Paper Model Download