Clue 3:

Before the screens and silent pings,

We sent our words on paper wings.

Where stories travelled near and far,

Sealed with a mark from where you are.

A grand old face of brick and grace,

It stood through time in pride of place

Where letter flew from far and near,

And telegrams brought joy or fear

What was the message sent with speed,

In times of joy, or urgent need?

If still unsure, look for the word above the door—

Take the fourth letter, nothing more.

Location: Post Office, 110 Main Street Zeehan

Answer: Telegram