Each Globe-Trotter Trunk has a special double locking mechanism to ensure safety of it's contents. If you aren't familiar with how to open these cases you may feel you have gotten "locked out". You have not, we assure you!
Twist the circular piece around the key hole to lock and unlock the mechanism. You may use the key to lock and unlock the trunks as well for added security. The image below shows the trunk in the unlock position. Twist counter-clockwise to lock.