What does OSR stand for?
OSR stands for "Okawville Silurian Reef"
How to abbreviate "Okawville Silurian Reef"?
"Okawville Silurian Reef" can be abbreviated as OSR
What is the meaning of OSR abbreviation?
The meaning of OSR abbreviation is "Okawville Silurian Reef"
What does OSR mean?
OSR as abbreviation means "Okawville Silurian Reef"
