What does OPAL stand for?
OPAL stands for "Oriental Philatelic Association of London"
How to abbreviate "Oriental Philatelic Association of London"?
"Oriental Philatelic Association of London" can be abbreviated as OPAL
What is the meaning of OPAL abbreviation?
The meaning of OPAL abbreviation is "Oriental Philatelic Association of London"
What does OPAL mean?
OPAL as abbreviation means "Oriental Philatelic Association of London"
