Check out the vintage sliding and calculating stuff on offer. These items are hand picked, checked, cleaned and described to my best knowledge after serious research. I do not waste time on uninteresting pieces. You won’t find stupid flaws like crack and parts missing. Condition will be described in detail and shown in pictures. Feel free to roam around and if you have any questions or concerns, just send me a short message. Do keep in mind that most items are pretty unique and I do not often come across the same item twice.