I was hoping you’d stop by. I was wondering the same things.
I’d be curious to know if this bowl/stem combo was a cataloged item.
Mystery solved. This is NOT THE ORIGINAL STEM. IT'S NOT THE CORRECT STEM. It's not ANYTHING like what was originally on the pipe. That's why it doesn't fit, and probably why the shank got cracked. Some brain donor created a "Frankenpipe".
I located an image of this model in the 150th Anniversary Catalog. For those of you who have a copy, the new model number is 5264 and it's listed on the page for pots, page 32 at the bottom. The original stem is straight and about equal in length to the stummel.
For anybody wondering how I know that Nichols number 235 and model 5264 are the same, I have a very useful document, published by Diversy Machinworks, then Barling's new distributor, that was sent to all of their dealers in the US and which contains a columned list of model numbers, the old 4 digit, the Nichols US numbers, and the new 4 digit numbering system that appears in the 150th Anniversary Catalog, all lined up. The 235 is the 5264.
And somebody just dropped $740 on a Frankenpipe.