Ok, being an old Philly firefighter, and retired from firefighting, I have a decent eye for detail. Looking at the Hidden City Philly site, I found this photo:
This is the second photo I have seen of a maintenance vehicle with a siren. Any ideas why? Being a red light geek, I'm pretty sure it's a Federal Model 78 dual tone, since Philly Fire was big on those in the 50s-60s.
This is the second photo I have seen of a maintenance vehicle with a siren. Any ideas why? Being a red light geek, I'm pretty sure it's a Federal Model 78 dual tone, since Philly Fire was big on those in the 50s-60s.