modesty-piece

Other stitches and patterns, none of them the most elaborate and difficult, are shown in the infant's cap and collars, and the strips of lace and "modesty-piece."

Home Life in Colonial Days Alice Morse Earle 1881

Strings of coins round the neck are universally worn by children, and the females, before they are of an age to be clothed, have what may not be inaptly termed a modesty-piece, being a plate of silver in the shape of a heart (called chaping) hung before, by a chain of the same metal, passing round the waist.

The History of Sumatra Containing An Account Of The Government, Laws, Customs And Manners Of The Native Inhabitants William Marsden 1795