Thanks @mitch2 .
I am no expert no it, but did get some “equivilent” cotton covered wire which I need to terminate and install. (Both for speaker and IC)
We joke about having to wear gloves to handle the old WE wire, but caution is warranted. Some old wires were treated with arsenic to reduce damage from being eaten by vermin.
I always wondered how the mice did not attack them like a British car loom..