An army green Multo calculator, a calculator from the 1950s, model 13. It's a completely mechanical machine. The Multo was made by a subsidiary of Addo. Addo later merged with the company Facit - Odhner. The special thing about this machine was that it could be operated with one hand, it was therefore also a more fragile calculator, these often got stuck or broken. A working Multo is therefore seen has a rarity. This type of model 13 works well, but it is also fragile. The correct actions in the correct order ensure the pins can be set permanently. Everything works well and smoothly, the calculator is also interesting as a decoration or a conversation starter. The serial number is 13-10422. The machine will be packaged well and sent by registered post.