Slide Rule love?

[Sandvich]

I have an old slide rule that my dad used to have, it's very cool, though I don't actually know how to use it.

[EricH]

I've got one that my grandpa had, but I barely know how to use it.

[GaryVoshol]

I had one that we used in 9th grade algebra, but I don't know what happened to it.

[DonRotolo]

I do treasure my K&E log-log poly duplex. Never needs batteries...