Airmail Labels from Bulgaria

Yes, don't be so surprise, I think nowadays Bulgaria is not using such airmail labels anymore. That's the reason whenever I asking friends from Bulgaria they will give me the same reason. However I still believe there will be airmail labels from Bulgaria in this world. Finally so lucky with the help from Christina, one of the member from postcrossing sending me this rare airmail label. It is used. I think quite and can say that very hard to get a new airmail label from Bulgaria.
This label is cool and nice right, even it is better if can get it on the envelope.