Production:0868

year	DMM	operator	production	cumulative	opening	depth	seam	thickness	method	days	emp
1921		Lamb & Pollack	2,563							175	9
1922
1923			1,500							100	7
1924			1,600							230	6
1925			460							81	2
				6,123
1925b		Gilbert Pollack	2,181							131	7
1926			2,814							280	7
				4,995
1927		Lamb & Pollack	225							85	8
1928			2,166						ug	180	7
1929			1,250						ug	145	6
1930			200						ug	60	5
1931
				3,841
1932		Gilbert Pollack No. 1	1,054						ug	240	8
1933			1,348						ug	275	7
1934			1,869						ug	300	7
1935	10		560						ug	140	7
				4,831
				19790