In the 60's I got my German made slide rule from the German owner of a garage I worked in part time. What a work of art and three decimal places was no problem. I could only dream of owning something so expensive.
Fast forward to many decades later when I tracked him down in in Florida and in his 80's. We fondly reminisced about the slide rule and other drafting tools I got from him. He mentioned his grandson or great-grandson was following in his mechanical footsteps.
That's all I needed so I packed up the slide rule, some other instruments I got from him and stuffed the rest of the box with Amish dried or canned foods. When he got them he was so surprised he was speechless. He thought they were long gone and far forgotten. Nope.