Human moles follow the compressed air drill - developing a drift in the greatest gold bearing region of the world, Crown Mine, Johannesburg, S. Africa

5 black miners in mine.
J16237 U.S. Copyright Office.
Stereo copyrighted by the Keystone View Co.
No. 33760.
This record contains unverified, old data from caption card.
Caption card tracings: Miners; South Afr. J-; Negroes in S.A.; Mines... Gold; Photog. I.; Shelf.