Ball and chain

1820s–1840s

Known as darbies or slangs in the convict ‘flash’ language, leg irons came in various shapes and sizes. This ball and chain leg iron weighs 36 pounds (16.3 kilograms) and was designed to make movement extremely difficult and escape virtually impossible. Such punishment was reserved for the most troublesome convicts, being held in jail or a holding cell awaiting trial for serious crimes. Despite being far less common than the standard leg irons (which weighed 3 or 4 kilograms), the ball and chain has become an evocative symbol of the convict system in Australia.

The leg irons the convicts wore on the transportation ships were removed on arrival in Sydney, but there were plenty of convicts who soon found themselves back in irons. By order of a magistrate, leg irons were fitted onto the ankles of convicts who committed secondary crimes, such as running away, trying to escape the colony, highway robbery or selling government property. They were then put to hard labour in iron gangs for several months or longer - one of the worst punishments that could be given to convicts. These men had to wear special trousers that buttoned up the sides, so they could be taken on and off around the leg irons. Leg-irons were made by convict blacksmiths at Sydney’s lumberyard after those sent from England proved to be inferior and easily slipped off. Irons were affixed to and struck off convicts’ ankles by the blacksmiths.

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Convict Sydney, Level 1, Hyde Park Barracks Museum
Convict Sydney

Objects

These convict-era objects and archaeological artefacts found at Hyde Park Barracks and The Mint (Rum Hospital) are among the rarest and most personal artefacts to have survived from Australia’s early convict period

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Convict Sydney

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Convict Sydney

Hammock Scrap

A few scraps of rope and coarse, but finely woven flax linen scraps like this one are all that’s left of the hundreds of hammocks that originally lined the convict sleeping wards

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Convict Sydney

Leg Irons, bar link

Known as darbies or slangs in the convict ‘flash’ slang language, leg irons came in various shapes and sizes

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Convict Sydney

Clock-winding crank

This sturdy crank was used for many years to wind the Hyde Park Barracks clock

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Convict Sydney

Hack barrow

Convict brickmakers working at the Brickfields (now Haymarket) used hack barrows like this one, stacking 20 or 30 wet bricks on the timber palings along the top, for transporting them from the moulding table to the ‘hack’ yard for drying

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Convict Sydney

Cupping glasses & scarificator

These cupping glasses are of the type that was used in the treatment of convict patients at the General ‘Rum’ Hospital

Convict Sydney

Leg irons, standard

Standard leg irons, like those pictured here, weighed seven pounds (3.2 kilograms)

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Convict Sydney

Leg irons, heavy

Known as darbies or slangs in the convict ‘flash’ slang language, leg irons came in various shapes and sizes

Brass dumbell shaped stamp.
Convict Sydney

Brass stamp

Between 1830 and 1848, the superintendent’s office operated from the Hyde Park Barracks, where this stamp was most likely used, on official documents and ledgers

Taylor panorama (left detail)
Convict Sydney

What was convict assignment?

‘Assignment’ meant that a convict worked for a private landowner

'Sydney Cove, Port Jackson. 1788' / W. Bradley
Convict Sydney

Molesworth report

The findings of the 1837 Molesworth inquiry brought about the end of convict transportation to New South Wales