HP-28S with User and Advanced Reference Manuals

[jebem]

It's kind of intriguing that a calculator such as the HP-28S can be found for low prices in eBay and in local auction sites like in Portugal, Spain and France.

I was checking the sold items on eBay for this model, and perfectly good working units were sold for very low prices indeed, even including the s&h.

It seems to be a very common model to find for sell everywhere.