I am trying not to laugh...

Thank you. I wonder whether the ashes were assumed to have first been in an ashpit, and therefore that urine was an ingredient just as it is for waulking/ fulling wool.

Treated with what?

We were all promoting 20-minute neighbourhoods as good UK mixed-use planning until the protests started. So let's combine them together, ratcheted up into 150-minute gridlocked cities.

Aargh yes that's them, like Dulles Airport. I think the vertical supports were more chunky, so probably inferior reproductions. Thank you.