Mystery Slider / Slide-out Corkscrew

The other day, I was sent photos of a small collection of corkscrews that were available, and within the lot was a corkscrew that I have yet been able to identify–other than it is a corkscrew…

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In e-conversations with the collector, he explained that there are no markings on the corkscrew in question…

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Using photoshop and zooming in, there looks to be a 1929 Hiering patent resting under the Williamson Flash, and a 1909 Rydquist to the left of the mystery opener with sliding corkscrew.

In many ways it looks similar to an M-73, but clearly isn’t an M-73.

But, what is it?  It doesn’t appear in Ferd and Bert’s book on pocket corkscrews, and it doesn’t seem to appear in the WCC book…

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It looks somewhat familiar…but…

What do you all think?  Have you seen this corkscrew before, and do you know its origins?

UPDATE!!!

After emailing a picture of the corkscrew to Barry Taylor, he suggested that it might be a version of the Becker patent… Not exact, but there certainly are similarities.

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Perhaps an American version of the Becker…

I will provide more information when it arrives!