Remember to check contact voltage and current ratings and action. Some of the switches I looked at were only for low voltage use. You may have to use low voltage switches to operate relays or contactors.
The switches are US origin, manufactured by H&H switches (Arrow-Hart & Hegeman Electric Co).
I've found a company in the US that manufactures modern day replacements and they seem to do the full range but it's easier for me to import from a UK supplier if there is one.
All my searches on H&H and alternative search terms only ever turns up US sites. Sorry can't do better. I would not know for certain if these switches are used in the UK - I suspect not.
You may be right, I'm also not sure if they were widely sold in the UK or not. Wishful thinking on my part, thanks for you and M-ty taking the time to look.
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