Those are a sad sight and it's unfortunate they are just sitting and wasting away. The Aerodynic is shot except for the speaker section and frame, which could be used for parts or a rebuild. The Twinsonic domes are still shiny, and have probably been inside their whole life. Too bad one is beyond salvaging but the other appears to be intact, along with the internals and frame. Are there any Q's or other sirens still on any of them? Were any of these still in service when they were parked or had they been replaced with new vehicles?
There is a local town near here that has two open cab ALF trucks sitting under a tin roofed shed at their wastewater treatment facility. One has a brass bell, a flush mounted Q, and a Federal 174 oscillating Super Beacon Ray, but they may not be there long if vandals keep entering through the numerous holes in the fence. They have been there for several years, and I've spoken to the fire chief and the mayor a couple of times about them but they said they aren't sure what they are going to do with them yet.
Those trucks in the pics also remind me of that West Texas "ghost" town we discussed in another thread that has some fire trucks just sitting around parked on the side of the road in different areas of town. What is it with some Texas fire departments just abandoning their vehicles?