N D R C Ear Wardens Samples of Ear Protector Inserts in Original Box
N D R C Ear Wardens samples of Ear Protector Inserts, two rubber grommets and one dowel wood applicator, in original box, by Harvard University, Psycho Accoustic Laboratory, Cambridge, Massacheusetts, United States, 1965-1975.
Details
- Category:
- Protective Clothing
- Object Number:
- 1981-779/2
- Measurements:
-
overall: 23 mm x 65 mm x 40 mm,
- type:
- samples
