MX-138-A/A. A collapsible radar reflector made out of monel metal mesh fastened to a supporting arm that hinges at the centre or mounting point. It was designed to mount on the top of an oar placed upright in the dinghy mast step. When in use the downed airman would erect the reflector to increase the distance at which the life raft could be picked up by radar. When in use it looked a bit like a broken umbrella! With attached stores label/instructions. We have not attempted to open/erect but overall condition looks to be quite good. Stock code S-NIV.