Facit C1-13 Calculators

I have two Facit C1-13 calculators. One is from the 1930s (green) and the other is from the 1980s (white).
The later model has one of the highest documented serial numbers (2369426).
I had to restore the older model because all of the lubricant had gone bad so I cleaned it and used synthetic oil.
It was a full strip-down (everything taken apart). Took me 20 hours across 2 days of work (probably not going to do that again).

Inside the younger model:

My second one from the ~1930s

My Gloves mid-way through refurbishing the calculator.