I've used Tange-Seiki Levin CDS (JIS) on a 1982 Holdsworth Avanti and a 1961 Holdsworth Cyclone, which I'm guessing need English Threading (but JIS race diameter).

Found the last order:
https://www.spacycles.co.uk/products...&Submit=SEARCH
No specification of threading on there.

Stack height 33.3mm which is quite short.
Just make sure if you need JIS or not.