Helmet lamp with battery pack, combined with self rescuer (CO>CO2 conversion), pack on leather belt, Lamp by Oldham, pack by MSA, England, as used by TML workers, c. 1990.
Helmet lamp with battery pack, combined with self rescuer (CO>CO2 conversion), pack on leather belt, Lamp by Oldham, pack by MSA, England, as used by TML workers, c. 1990.