Researching IBM rare equipment from 50s to 80s

On 12/14/2018 4:41 AM, Peter Van Peborgh via cctech wrote: Well, if your intention is to actually find one, can't help. I do know that Wisconsin DOT had one back in the day, on an IBM 360/50, but it was gone before I started work there. I think that I have a large negative of the beastie lying around somewhere. No, it is not stuffed anywhere. Indeed the building that formerly housed it (and was home for me during my career) was razed just this year. In general, even if IBM still had such records, I am sure that they would not release them, and doubt that they would be indexed in fine detail such that you could find customers of any particular machine type (unless they fed them to Watson ;) ). Leased units would have been turned back into IBM. Purchased units would have been mostly traded in and scrapped. A Google Search found these instances of customer units (there may well be more - I stopped after a few pages) http://www.columbia.edu/cu/computinghistory/datacell.html https://www.facebook.com/HealthManagementTechnology/photos/ibm-2321-data-ce… https://commons.wikimedia.org/wiki/File:IBM2321DataCellAtUMich.jpg JRJ