Scarce WW2 Era Middle Eastern Silver Niello RAF Sweetheart Brooch

A very unusual example of a Second World War period Middle Eastern silver Niello 'Royal Air Force sweetheart brooch', not marked for silver but tests as 925, Niello is a black mixture, usually of sulphur, copper, silver, and lead, used as an inlay on engraved or etched metal, especially silver. It is added as a powder or paste, then fired until it melts or at least softens, and flows or is pushed into the engraved lines in the metal. It hardens and blackens when cool, and the niello on the flat surface is polished off to show the filled lines in black, contrasting with the polished metal (usually silver) around it. This example comes in very good condition with a simple pin on the back and measures two inches long.

Code: 28210