The museum, which quickly became a hit, includes a variety of police memorabilia along with modern-day equipment, like a protective suit worn by the department's bomb unit.
The bomb unit believes the detonator was of former East German military manufacture.
An army of police units, including the bomb unit, emergency services, marine and aviation units, responded to the officer's call for help.
In all, F-117 pilots flew more than 80 missions and dropped nearly 100 enhanced guided bomb units against key targets.
Following another few minutes of painstaking and nerveracking work by the bomb unit, it was discovered that the grenades were nothing but practice dummies.
The fuel tank was a bomb bay-mounted unit from a B-29 Superfortress.
None of the other callers has been identified, the authorities said, and the bomb unit is constantly being deployed.
Peabody's called a bomb unit, just in case, and she's holding the delivery boy, but he looks genuine.
It earned the title of the world's best bomb unit for combat accuracy and was the first unit trained in both day and night tactics.
UN has to date disarmed 160.000 hidden bomb units but believes to have another million to go.