What does HHSM stand for?
HHSM stands for "Howard and Hanley Slope Mine"
How to abbreviate "Howard and Hanley Slope Mine"?
"Howard and Hanley Slope Mine" can be abbreviated as HHSM
What is the meaning of HHSM abbreviation?
The meaning of HHSM abbreviation is "Howard and Hanley Slope Mine"
What does HHSM mean?
HHSM as abbreviation means "Howard and Hanley Slope Mine"
