What does OBSM stand for?
OBSM stands for "Old Bruce Slope Mine"
How to abbreviate "Old Bruce Slope Mine"?
"Old Bruce Slope Mine" can be abbreviated as OBSM
What is the meaning of OBSM abbreviation?
The meaning of OBSM abbreviation is "Old Bruce Slope Mine"
What does OBSM mean?
OBSM as abbreviation means "Old Bruce Slope Mine"
