Multifix
S/N 64014 Miniature (1.6 kg) Norwegian geared sector calculator. It has a pull-crank, which oscillates between two extreme positions in order to do operations and clear various registers. Operating the machine requires a little study, as there are a rather large and unusual number of levers everywhere. For this reason, the manual, translated from French, is here. With thanks to W.J. Wang. This is the EI model, without back-transfer.
If the Multifix were a penguin, these would be its Happy Feet!
I've since bought an EIR model as well (with back-transfer) from France. What is interesting is that the Société Dactylo, which were the only distributors for France, were at 9 Rue Chateaudun. The whole story of mechanical calculators started at 44 Rue Chateaudun, which is where C.X. de Thomas' workshop making the first arithmometers in 1820 was located.
Some pictures of the more advanced model:
And the two sisters together:
