My dad was born in Govan and I'd often visit the city with him, sometimes including a visit to The Clyde Model Dockyard one of Bill's haunts. I remember the trams and my dad muttering about car tyres and tram tracks.
The trams had the city's coat of arms on the side and he'd usually recite this verse at some point

Here is the bird that never flew
Here is the tree that never grew
Here is the bell that never rang
Here is the fish that never swam.