In case someone else has also a need to convert speedo from miles to kilometres or just to calibrate it to exactly to your car, see what I did with mine by using PhotoShop editing.
http://www.elisanet.fi/kopik/jag/restor20.htm
(notice that mine is calibrated for my car and not for general usage kph=1.6 x mph)
Köpi & 1961 Mk2 3.8
Oulu, Finland
http://www.elisanet.fi/kopik/jag/jagmk2.htm
3 Likes
I just had a great reading of Your resto-log !
I’m very emotional, as I’m about at the very beginning of the same path as Yours.
Too bad the pictures don’t resize - lots of valuable details are hiding in those pixels 
Thanks Piotr!
You can (at least with my browser Chrome) right click on photos and then select Open photo in new tab. And in new tab you can CTRL +/- to zoom into photo. That does not increase pixels but helps your eyes!
Köpi