Mart, I sorry, my “distance” comment was an after-thought for the benefit of Vwdoyle and/or
other viewers who might not know how the plane was “adjusted” for each different job it was used for. With your expertise in woodworking I knew why you were asking the question but I wasn’t sure Vwdoyle would.
If we could see the “shape” of the two (2) cutter blades then we might be able to figure out what the original owner was using that dual cutting “combo” for.
I know from my own experience that iffen one doesn’t have the “right” tool to do a specific job that they will “jury-rig” something that will work. And I defy anyone being able to figure out what some of my “thingys” were used for …. and thus would only know if I told them.
HA,
somewhere out in my garage is an “adjustable spreader” for making
diagonal “cuts” on my radial-arm and/or table saw. I originally designed it for sawing the
square “tapered” legs for a table. The “spreader” was placed between the “fence” and the “board” and both slid along in unison …. thus every “cut” was true n’ perfect.
My "red cedar" end-table sits beside my computer desk and looks identical to this one except it is smaller and has a "slotted" shelf for storage.