HP DY651A, e.g. https://www.ebay.com/itm/234392830458
I bought three of them some ten years ago, and they are still working perfectly. It seems the model is no longer in production. The original price was very low. I seem to recall it was also sold as an IBM mouse. Mark. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T49f3cceea70d2b61-Mc93adb0e55fe39931ae344cb Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
