This stuff is applicable to all Stanley bench planes of the basic Bailey design (as well as those that incorporate the Bailey patents such as the Bed Rocks), and comes from my observances of thousands of these planes.
All dimensions that follow each number indicate the length of the sole, the width of the cutter, and the weight of the tool.
The skewed cutter on the fillister bottom makes cutting easier, and the fence, supported by two arms and running the length of the sole, makes the 41 less annoying to use than its closest rival in our shop, the Stanley 78 duplex plane.
If you’ve got specific questions, or things that you’d like for me to try and then post, I’d like to hear it here.
The Stanley 41 uses screw pressure to hold the blade in place, so the only advantage to a thick cutter would be in reducing chatter.
Later combination planes were made with 1/8th inch thick blades.
I will also include a video of me making the cut as well.
The intent is for it to act as a sort of visual reference on how a task can be performed.