Crescent is a small town in Oklahoma with a system of 4 sirens. They have 2 Federal Signal Eclipse 8's, a restored Federal Signal 3T22, and an ACA Screamer S-2. They also have a disconnected Sterling M on the water tower, right by where one of the Eclipse 8's stands. What sets this system apart from others is the 3T22 is directly down the street from the Eclipse 8 that is on the water tower. To make it more interesting, the 3T22 actually replaced a Darley Model 5/7 after the Eclipse's were installed. All 4 sirens are tested every Saturday at noon for a brief alert blast.