恰好刚写过一个.
xxschool（你的地址,先小地址后是市,最後国家,分行写顶格）（收件人的地址,明信片应该有留位置）
Mar3.2012（日期）
Dear Miss XX
I opened my wallet and found it empty reached into my pocket and found no coin , searched my life and found u .Then I realized how reach I was.Best wishes to you.
Yours sincerely
xx