Royal Australian Engineers - E. Esdaile & Sons Surveying Altimeter - 18 Fd Sqn is a rare and original piece of militaria. Made by in Japan Tamaya this altimeter was used by the 18th Field Squadron and carries historical significance. It comes in a box marked with the NSN: 6685-66-067-0460 with a leather carry pouch made by . A must-have for collectors of modern militaria and Australian military memorabilia. This altimeter showcases expert craftsmanship and is a unique addition to any collection. With its authentic design and connection to the Australian Army, it is a valuable piece of history that would make a great conversation starter or display item.