What does ONB stand for?
ONB stands for "On Board (philately; Zeppelin mail designation)"
How to abbreviate "On Board (philately; Zeppelin mail designation)"?
"On Board (philately; Zeppelin mail designation)" can be abbreviated as ONB
What is the meaning of ONB abbreviation?
The meaning of ONB abbreviation is "On Board (philately; Zeppelin mail designation)"
What does ONB mean?
ONB as abbreviation means "On Board (philately; Zeppelin mail designation)"
