N D R C Ear Wardens samples of Ear Protector Inserts in original box

PART OF:
Samples of ear protector inserts in original boxes
Made:
1965-1975 in Cambridge
maker:
Harvard University, Psycho-Acoustic Laboratory

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
type:
samples