This is a modesty disc or known as Caping in Malaysia. It is worn to cover a boy or a girl private part especially a toddler.Its widely used in the past by children in the Eastern coast of Malaysia. Caping is made either from gold, silver or brass depending on the children family social status.
The caping in my possession is made of brass and believed from 19th century CE.
Measured at 3in x 2 in
"Capings are heart-shaped plates that were used by Malays as a substitute for clothing and were worn suspended by chains mostly by infants girls and sometimes by small boys. They tended to be made from different materials according to the ranks of the wearers. Gold was reserved for the nobility, silver for dignitaries, and plates made of brass, copper or coconut shell for commoners. Babies tended to wear capings once they could stand, something that was often accompanied by a simple ceremony."
( Ref: Kassim Haji Ali, M., Caping: Modesty Disc, Museum Association of Malaysia, 1983.)