I do have more than one in my possession. Can I manually handle and command the item? I surely used to be able to… it was a long time ago.
I don’t know if it is relevant or not, however the company Piller is celebrating 100 years’ in business this year. And yes, they’re apparently still based in Osterode am Harz (never been) in northern Germany. And no, I don’t think the use these items in their daily enterprise.