Wehrmacht Radio Lumbar Support Strap or back protector (Rückenstütze b) as used to carry the Feldfunk radios on the back in the field. This is the 'Rückenstütze b', this is the first time I've ever encountered a 'b' type 'Rückenstütze'. The strap is nicely maker marked with an anchor logo and dated 1941, it is also 'WaA' marked on both the leather and metal parts. One of the clips is partly incomplete, see photos. This is a very hard to find piece of equipment when needed for your radio. Extremely rare piece of equipment!