Hi, new to the board. I came across a 1934 snap on tools catalog k in very good condition and I was wondering if anyone had a rough estimate as to it's value?  I'm going through a box of my grandfather's stuff. My great grandfather owned a garage so he has a fair amount of tools, parts, catalogs, advertisements, etc...laying around. I have no idea what most of the stuff is and I plan on selling most of it, just keeping the stuff with some sentimental value. I'm going to try and get some pics up tomorrow to make the post a bit more interesting. I couldn't find much searching the internet and the only thing I could rember at the moment was the snap on catalog. Anyway, Any help is greatly appreciated. Some of it is old advertising/illustrated training manuals, I think most of it is very interesting just no idea what I have. Little long winded I know, thanks in advance.

Welcome to Tool Talk!
There is always interest in old catalogs and the value can be from 0 to high, depending on many factors. An item is worth exactly what a buyer is willing to pay.
Research past sales of your items and determine what you are willing to accept for them and give them a whirl.