in reply to Re: My preferred temperature scale is:
in thread My preferred temperature scale is:
"I pre-marked my slide rule..."
Wow! Seems like it's still in use.
BTW, I bought one by Faber-Castell a while ago - with it's original packaging and manual. And i inherited another from my father with a teakwood core (!) for mercantile application ditto from Faber.
Best regards, Karl
«The Crux of the Biscuit is the Apostrophe»