'Coal mining was made safer by the 19th c. invention of the safety this, which wouldn't ignite methane'
a lantern (or lamp)
OLD KING COAL: Coal mining was made safer by the 19th c. invention of the safety this, which wouldnt ignite methane
Coal mining was made safer by the 19th c. invention of the safety this, which wouldn't ignite methane
Coal mining was made safer by the 19th c. invention of the safety this, which wouldn't ignite methane
OLD KING COAL
a lantern or lamp
OLD KING COAL