What's the rarest or most unusual computer-related item do you own?

I think my most uncommon item would be: A DEC RC11 and RS64 - Installed and working on a PDP-11/20. I have a few other interesting artifacts that are probably not common, including: A DEC VT05 - not working. A DEC RF08 - not installed A DEC RS08 - Disassembled and broken ;( A DEC PDP-12 - Mostly working last it was on A set of populated PDP-12 backplanes (I wasn't able to rescue the whole machine) A DEC PDP-8/L - Working last it was on A DG Eclipse S/140 with disk - not tested recently A DG Nova 4 with tape and disk - not tested recently A working Wire-wrapped Mark 8 I built A Mark-8 replica I built A TV Typewriter that I built way back when, restored A Netronics original IBM PC clone I built way back when An HP 2114 On 1/10/2017 4:09 PM, Andy Cloud wrote: