Tekno made several of these in their 400 series. They all had the same baseplate and Triangle trademark wheels.
427 police car or Black Maria (US)

There are a few theories online about why an old Paddy wagon or Police Car is a Black Maria in the US. Anyone know the real story?
485 Fire Escape (ladder truck) ZR or Fire Dept (US)

The silver flag is a replacement.
486 Fire truck ZR or Fire Dept (US)

The silver ladder is a replacement.