View source for Production:7387

{| class="wikitable"
! year !! company !! address !! production !! cumulative !! type !! depth !! seam !! thickness !! method !! days !! emp
|-
| 1878 || John B. Ledermain || Pekin || 1,000 ||  || shaft || 100 || #3 || 4 ||  || 12 mo || 8
|-
|  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 
|-
|  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 
|-
| 1882 || J. B. Ledterman, Empire Mine ||  || 3,746 ||  || shaft || 90 || #6 || 4.5 ||  || 12 mo || 8
|-
| 1883 || John B. Lederman ||  || 78,566 ||  || shaft || 100 || #5 || 4 ||  || 12 mo || 20
|-
| 1884 || John B. Ledderman ||  || 2,480 ||  || shaft || 98 || #5 || 4 || RP || 247 || 4-8
|-
| 1885 || J. B. Ledterman ||  || 2,240 ||  || shaft || 99 || #5 || 4.5 || RP || 135 || 2-5
|-
| 1886 || J. B. Leetlerman ||  || 2,300 || 90,332 || shaft || 99 || #5 || 4.33 || RP || 205 || 3-10
|-
|}