Production:3752

year	DMM	operator	production	cumulative	opening	depth	seam	thickness	method	days	emp
1933		Blue Bird Coal Co., No. 2	2,000						ug	150	6
1934			3,500						ug	140	10
1935			1,716						ug	106	11
1936			2,900						ug	194	11
1937	L-23		1,434						ug	74	8
				11,550