What does NSSM stand for?
NSSM stands for "Non Sounding Surface Mark"
How to abbreviate "Non Sounding Surface Mark"?
"Non Sounding Surface Mark" can be abbreviated as NSSM
What is the meaning of NSSM abbreviation?
The meaning of NSSM abbreviation is "Non Sounding Surface Mark"
What does NSSM mean?
NSSM as abbreviation means "Non Sounding Surface Mark"
