Anyone who know how to open cheney suitcasse?

I bought a vintage cheney suitcase, but unfortunately I couldn't open it.
There are one round key hole and one metal bar on it. The suitcase can open without a key.
Do you know how to open it?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).