On 30/04/2019 18:50, AnthonyL wrote:
1960's build and probably the original basin and bath pillar taps.

The 1/2" basin tap has a flat washer of 13/16" (20mm) dia.



The 3/4" bath tap has a flat washer of 1 3/16" (29mm) dia.

https://www.amazon.co.uk/Pillar-Wash.../dp/B074NC1PRD

Amazon or ebay - the right one will be there somewhere


--
€œThe fundamental cause of the trouble in the modern world today is that
the stupid are cocksure while the intelligent are full of doubt."

- Bertrand Russell