A seal from the Registrar of Slaves and Deeds is seen on display at the Slave Lodge Museum in Cape Town, South Africa. The wax impression dates from between 1816-1838.
REUTERS/Mike Hutchings 

A slave certificate from the Registrar of Slaves and Deeds on display at the Slave Lodge Museum in Cape Town, South Africa. After 1808 when the importation of slaves was no longer allowed, slave sales were more tightly controlled and certificates such as this were issued as a means of record-keeping. REUTERS/Mike Hutchings 

A slave bell, that dates from 1775, on display at the Slave Lodge Museum in Cape Town, South Africa. It has its origins from the Estate of Burgher Lieutenant Michiel van Breda in 'Oranje Zigt' now know as Orangjezicht in Cape Town and according to the museum was used to summon slaves for work and to mark the end of the day. Michiel van Breda had nineteen male slaves, eleven of whom were from Bengal and described as 'gardeners'. REUTERS/Mike Hutchings