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

[Chuck Guzis]

On 01/29/2017 01:55 AM, COURYHOUSE at aol.com wrote:
> Doug!  We would like a  scan of your dad's certificate!
>  
> We have  an ongoing collection on this computer  at   SMECC
>  
>     1955 Honeywell computer business was  originated from the Datamatic 
> Corporation, founded in Newton MA, as a  joint-venture by Raytheon and 
> Honeywell, to produce large-scale computer  systems. Raytheon sells its 40% interest 
> to Honeywell in  1957..  1957 Installation of the first Datamatic  D-1000 
> to Blue Cross/Blue Shield of  Michigan.
>  
>  
>  Honeywell Datamatic 1000  uses 3 inch wide tape
> we have a 3 inch very very heavy reel and  the 30 something  track  tape 
> drive head.... could this someday be the start of  the  ultimate  DIY tape 
> drive build and tape recover?