I have a 100% working SL-5000d (the "developer version" of the SL-5500, complete with many accessories (CF, SD, battery, camera card, power supply, external IR keyboard etc. etc.) that I would like to trade for a CLEAN and WORKING vintage Hewlett Packard calculator from the following list. It must be working:
HP-67, HP-65, HP-55, HP-45, HP-19c
Contact me if you're interested, I have pics etc.