THANH TRA CẢNH SÁT ĐÔNG DƯƠNG insigne de fonction de la Police Nationale en Indochine (Vietnam) - 1950s (Militaire Indochine, Vietnam) The desing is the words Cong-An in white enamel, the letters V.N. at the top of the wreath under the loop for attachment to a neck chain. It has a stamped DRAGO maker mark (French 1950s manufacture) at the bottom of the wreath on the front. It measures 44mm. Here is a view of the back, showing the deeply stamped POLICE and low 1571 number.
Police et Sureté - 4 chữ CSCA lồng vào nhau = Cảnh Sát - Công An - do Drago Om sản xuất (Militaire Indochine, Vietnam)