We also had a bit of a rummage recently and came across one of my father's tools from his early working days as a chartered engineer - a Curta. Before I reveal what it is does anybody know, or want to hazard a guess (without Googling it)?
PS - guesses NOT open to N22 MOG!!
Ok, so I cheated and looked it up on Wiki. Suggested values from $1000 - $1900 ! Sell, sell, I say ‘cos when you’re gone, it might get chucked away as no-one will be able to find where to fit the batteries!!🤯