Here's some of my stuff.
The slide rule is aluminum w/leather holder.
Scale is from an old drafting machine Dad had. I'm sure my wife found it too big for us to keep around. Used to clamp it to a board to use it.
The books are K&E instructions for the slide rule. I have a large plastic slide rule but it is put away in a trunk in the closet. I also have Dad's old drafting set. Dividers, compass etc in a nice case.
I was an engineering student at one time, taking drafting in jr college I found the need to keep the lead sharp too much trouble to bother with. That and the math just didn't click with me for some reason.