I hit four estate sales today, with good results.
The first sale was a hoarders sale, on a rather interesting piece of property. Smack dab in the middle of a new development, was an older home on about an quarter acre of land. There was a house that had multiple additions on, an outbuilding, and a pole barn. All of them stuffed with... junk. And I mean just junk. Not trash, but stuff you see someone saving, but would be in piles of the same stuff but much newer. Like four vacuum cleaners, along with all of the attachments, ranging from 40 years old to last years. Weird. But, sifting around I found the following:

Vintage rifle sling, Starrett long pin punches in box, empty Starrett box (for surface gauge), Helios vernier calipers, magneto wrench set, Fowler (Helios) thread gauge, RCBS powder trickler, and a Plomb WF breaker bar.
Also from that sale

a Mitutoyo protractor and Riverside DBE in the lower right. Total $15, as it was half price day.
The Zim valve lifter (in box), Armstrong and Blue Point wrenches, along with a Stevens #8 (!) came from the second sale ($5.50), while the Goodell Pratt multi tool ($3) came from a very high end estate sale I checked out due to the number of older books in the ad, which, sadly, turned out to be merely decorative, and in poor condition for the most part.
The forth and final sale had a lot of tools in the ad, but mostly newer, cheap tools, which I wasn't interested in. But I did find a Starrett run out gauge holder and a packet of good, small drill bits for $6.