1721 T. Parkyns 35 Wastmen who remove and set the Wood, Gig-men who take off the Skeps of Coal at the Pit-mouth, and Bottomers who hang them on at the Bottom.
1833 H. Martineau ii. 28 Coal enough—and no little of a prime quality,—was destroyed at the pit-mouth.
2002 (Nexis) 23 Feb. (Sport section) 8 Every other Saturday was a half day off and the shift that was finishing at lunch-time would have a spread laid out for them at the pit mouth by their wives.