This looks like it would have been a popular tool in its day. This one is a Walden Worchester 6418 9/16" pat. pend.
It is neat to see how a whole industry was built just to accessorize and service the Model T. Sort of like iPod stuff of today.
There were quite a few wrenches and attachments
patented to do this job, and most were similar to the
Walden or Speedy style.
This Walden patent matches Jay’s but with a second
support post added. Perhaps it was found to be necessary
when tests or production began.
Patent number: 1424712
Filing date: Jun 16, 1920
Issue date: Aug 1, 1922
Cool. I would love to have a class from you on how you find these things. Thanks again, Erich
That's a neat one. I've never seen that design before. All three that I have owned, are like the one in the ad that you posted. They're made by BOG MFG Chicago, IL
I ended up with two of them in a pile of parts that I bought several years ago and gave one to a friend. Then, I bought a really nice one at an auction that still has all of it's original nickle plating. So, I sold my old one on Ebay. I was so surprised with the Ebay auction result that I nearly listed my "keeper" too. But, it's value as a conversation piece still means a lot to me. I love seeing accessories.
I haven't bothered to take a photo of my "keeper", but here's the one I sold:
Eric, Thanks for sharing. The one your showing here is the one pictured in the ad. I also have one like that buried in a pile of parts somewhere. The Walden units spring loaded part can be removed from your wrench when not needed giving you two seperate tools in one.