Flasher for CFD Aerodynic

[mls60442]

What would have been the most likely flasher used for A Chicago Fire Department Aerodynic? Would they have used a 537 or an FA3? I've got both, just looking for which would make it more authentic. I imagine they would have used both as the decades changed?

 

[Stampeed Valkyrie]

I think it depends on your frame of mind..
the correct flasher would be a Thermal Can flasher 537.
I have used an FA-3 on several of mine because I had them.. in all honesty its your call.

 

[mls60442]

I think it depends on your frame of mind..
the correct flasher would be a Thermal Can flasher 537.
I have used an FA-3 on several of mine because I had them.. in all honesty its your call.

Yeah. I assumed it was the Thermal 537. I've got one so I'll probably go with it. Thanks for the input.