A First War Curtiss Aeroplane Altimeter By Taylor Instrument Companies Auction the remaining six medals are

the remaining six medals are unmounted

1 Construction Battalion

A Yugoslavian WWII Army Air Service  Observers and Navigation Badge - In silver

47 mm x 49

vertical pinback) on the right

A First War Curtiss Aeroplane Altimeter By Taylor Instrument Companies Auction the remaining six medals areAltimeter with a brass ring frame and glass crystal, mounted to a solid non magnetic dark gray painted steel housing, the face with a metal needle mounted to a brass pin in the centre, the directional pointer painted in black and finished with an arrow, the opposite end painted in white and finished with a loop, gradated from "O" to "15" in single digits counterclockwise, each representing one thousand feet, each number with a black dot between, with