This machine was in extraordinary condition when I purchased it about twelve years ago, and it was fully working.  The paper you see came with it, and seems like it might be original to the era.

During one use of the machine something changed, and the handle does not engage as is necessary (it still moves though). One button (Non-Add) now refuses to budge since that moment; I don't yet see another way to release it.

It could be something simple but I haven't opened it as it's a complex device. So I'm selling it as is but it still looks really great as an office decoration. It's in amazing shape.

Please see pics for the best description and feel free to ask questions. Thanks for looking!