The Slave Bell was used to punctuate the day at the Cape Colony during the days when slavery was still practised there. In Cuba the slave bell was rung before the slaves who had reported for duty were freed.
- Brink, Yvonne (2008). They came to stay: discovering meaning in the 18th century Cape country dwelling. African Sun Media. p. 158. ISBN 9781920109394.
- Tucker, Spencer C. (2009). The encyclopedia of the Spanish-American and Philippine-American wars: a political, social, and military history, Volume 1. ABC-CLIO. p. 109. ISBN 9781851099511.
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