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

Wed Jan 11 12:34:53 CST 2017

I have several computers from the 60s and 70s but oddest thing what I have got is this:

https://plus.google.com/u/0/photos/114704705421528969208/albums/6114938694824762945/6374409873912794402?pid=6374409873912794402&oid=114704705421528969208

It is panel from ES EVM, Russian version of IBM 360/370. No idea of the age or exact model, looks like it is from the 60s, but because this is from Soviet Union, it can be lot newer maybe even from late 80s.

- Johannes Thelen
Finland

Before microcomputers blog (Finnish) http://ennenmikrotietokoneita.blogspot.fi/