Andrew,
This story;
http://earhartonsaipan.blogspot.com/ , I admit is a bit confusing to follow. Two things.....First , the gentlemen who found this artifact say they know what it is, they say they know where it fits....looking at the first photo of the gentlemen with the artifact and hub on the table, one sees that they place it on the smaller 8" outboard end of the hub. Are They correct? I am not 100% sure , but I believe they are.
Now comes a monkey wrench and I can see how the article becomes confusing; Farther down in the story, they post a picture of the inboard brake assembly, and state that the dust cover fits between the brake assembly unit and the wheel ,... sounds like it should go right in between the disks pictured and the outboard hub....if that is true, would that dust cover be 12" or a bit smaller in diameter? I can not say that a placement of a dust shield in there somewhere wouldn't be a bad idea....maybe someone at
Lockheed Goodyear says, lets stop brake dust from entering the wheel bearing on the inboard side and traveling along the axle to the outboard side and contaminating the entire assembly.
Question.....would the gentleman who sourced the image of the hub , be able to help us?
Does he or anyone else have that catalog?
Earhart’s 10E Special NR16020 featured Goodyear Airwheels. TIGHAR collection courtesy W. Larkins
http://www.bing.com/images/search?q=wheel+of+fortune+tighar&qpvt=wheel+of+fortune+tighar&qpvt=wheel+of+fortune+tighar&FORM=IGRE#view=detail&id=AE837DBDC3092D2E9D6EADDB184409B9B9CF5080&selectedIndex=2