寻物启事是指在公共场所或其他场合上贴出寻找失物的广告，以便能够尽快找到失物。寻物启事应该包含失物的详细信息，如失物名称、失物丢失的时间和地点、丢失物品的特征等。以下是一篇寻物启事范文：

寻物启事

我于昨天在市中心的购物中心丢失了一支黑色的钢笔。这支钢笔是我母亲送给我的，对我来说非常重要。我在购物中心的书店购买了一本书之后，便发现钢笔不见了。如果有人在购物中心发现了这支钢笔，请联系我。以下是钢笔的详细信息：

名称：黑色钢笔

时间：昨天下午4点左右

地点：市中心购物中心书店

特征：钢笔上有银色的装饰，笔身较细，笔帽上有一个金色的图案

如果您有任何信息，请致电：123456789

谢谢您的帮助！

Lost and Found Notice

I lost a black pen yesterday at the shopping center in the city center. The pen was a gift from my mother and is very important to me. I noticed it was missing after I bought a book at the bookstore in the shopping center. If anyone finds the pen in the shopping center, please contact me. Here are the details of the pen:

Name: Black Pen

Time: Yesterday around 4 pm

Location: Bookstore in the shopping center in the city center

Features: The pen has silver decorations on it, the body of the pen is thin, and there is a gold pattern on the pen cap.

If you have any information, please call: 123456789

Thank you for your help!