I am a huge fan and collector of any mechanical calculators and have found a picture of a mecahnical tidal depth calculator on the internet.
Now I am trying to get such an old calculator but it is no longer sold on regular shops.
Does anybody still own such a calculator (see picture) and would like to sell it to a decent price?
I promise, it will be in good and safe hands as I am a collector... :)
Thank you very much,
greetings from Germany,
Olaf
Youngs Depth.JPG- (257.21 KiB) Downloaded 1838 times