Both MSA-manufactured helmets are represented in the mining collection in the Division of Work and ... National Museum of American History Coal King Miner’s Helmet National Museum of American History ...

The table below outlines the Helmet modifications for Deep Mining Space Helmet including the Modification Slot, Description, Resources, and Item Code.

The oil-fueled flame was exceedingly smoky, and could easily ignite flammable gasses (mainly methane) found in coal mines ... Just like the soft mining caps that were used to hold oil-wick or carbide ...