ALRO printing circular slide rule case cicero Jos Neve 1960 Holland

This small round slide rule is marked “Jos Neve” and is double sided. Jos Neve. was a Graphic / printing Company in Amsterdam, started in 1914. It also comes with a hardly ever seen one page instruction in Dutch (few small holes on top only). The slide rule itself is in minty condition with the chromium plating on the centre of both sides intact and still very shiny. Both sides show hardly any signs of use and some age and are perfectly readable and fully functional of course. It comes in the original leather case that is complete and hardly has a mark on it.  well. I assume it is from somewhere in the 1960’s and it is made by ALRO (ALl ROund) from the Netherlands / Holland. This model has simple scales on the front and spacial (Cicero) scales on the back for printing to determine Font size. Both sides have a see-through disc with hairline that acts like the cursor. It measures ca 6 cm or 2 3/8 inches in diameter. Check the attached video on how to work your vintage man tool : slide rule operation instructions!