ReStore - was nearby so stopped in...

[amecks]

I had an errand today in Syracuse, so drove about 4 miles to the ReStore.  I bought 3 six-packs.  Of Nicholson hacksaw blades, that is.  Found another Barcalo-Buffalo 11/16 x 19/32 open end wrench.  And I picked up the rusty looking 8" Diamalloy adjustable - I could feel the wheel move slightly, the jaw also had some movement and the screw looked to be in good condition.  I was able to get it apart with a little bit of heat from propane.  It cleaned up really well.  It has the number AT-8029 neatly stamped on the handle. See photo.

[gibsontool]

Nice adjustable, Don't see them to often. Good find

[d42jeep]

I believe that your new Diamond adjustable is wartime and was included in the incredibly valuable Merlin Packard aircraft motor toolset.
-Don

[amecks]

WOW!  Well, I thought it might be old since there is no plating.  Is it identified because of the AT-8029 number?  (Ugh,  I wasn't logged in when I read your post, so the picture did not show - now I see the AT-8029 wrench)
As rusty as I found it, there was some, but very minor pitting.  It cleaned up remarkably well.

[john k]

Glad that got unstuck.  Was given a very rusty 12 inch Crescent at a swap meet.   After a vinegar soak, and much tapping the adjustment wheel finally moved.   Is in my user tool box.   Have a 10 inch Bonney adjustable, rusted solid.  Soaked it in used oil for months, a few minutes on the wire wheel revealed the body is cracked in 3 places around the slide.   Is a wall hanger now.  Like shopping at the Restore whenever we get to the city.