|Mail sent by Mary England (taken from here).|
I did not know that sending items without any wrapping has a name: naked mail. Even if I have sent and received some naked items. This bottle gives me some ideas. But indeed, I do not dare to sent naked objects from Morocco.
By the way, trying to finding out about this kind of mail, I also learn that it is referred by postal office workers as TTPO which stands for 'Torture the post office'.