A Facit - Atvidabergs vintage Swedish calculating machine model NTK CI-13 - together with the original user booklet which appears to bear the date 9.56 in the bottom left hand corner of the back cover.
Amusingly, on page 4 it states that " The Facit NTK masters all the 4 rules of arithmetic by means of 10 setting keys only"
The booklet is very detailed and profusely illustrated and frankly without it I would have had no idea how to operate it !
Such a clever piece of mid.20th century Swedish mechanical technology.
The machine is extremely robustly built and very heavy for its size;
30cm long including handles
21cm deep
15cm high
The calculator and the original user booklet together - probably very scarce - they have stayed together for 68 years !
I am offering the machine and booklet together POST FREE TO UK ADDRESSES. Elsewhere by the Global Shipping Programme.
I have taken the photos with my mobile - the mauve shade across parts of the side views do not exist in reality - a trick of the light I'm afraid