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

[COURYHOUSE at aol.com]

EAI also made drum memories too I believe...
ANYTHING EAI is cool!
Ed#  _www.smecc.org_ (http://www.smecc.org)  
 
 
In a message dated 1/12/2017 2:26:08 P.M. US Mountain Standard Time,  
cctalk at snarc.net writes:

>  Given the topic, I have this rather *unique* punch card reader, if you  
want
> to call it that. It is marked EAI but that's where the trail  turns cold.

EAI is Electronic Associates Inc. based here on the NJ  shore. They made 
analog  computers.