This may be a tough one: Searching through the Wisconsin History site I found photos of a B-23 I've never seen before:




A little Googling brought me to an International Harvester collector's page on Facebook with more info:
Quote:
The "Harold F. McCormick," International Harvester's corporate Airplane. in 1948. WHS Photo
According to an article in the June-July 1955 issue of "Harvester World" magazine [pg.21], International Harvester's first corporate plane was a converted B-23 light bomber. W.R. [Bill] Dotter became the head of International Harvester's air fleet.
Now the mystery: Not only is NC49892 not a former or current registration among known survivors, it's not listed on
any B-23 on the Baugher list. One possible clue is that 39-59, last registered as N86E, was originally NC4989
1; perhaps the same broker registered and sold it? Over to the experts...
(Images credited to Wisconsin Historical Society)
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All right, Mister Dorfmann, start pullin'!
Pilot: "Flap switch works hard in down position."
Mechanic: "Flap switch checked OK. Pilot needs more P.T." - Flight report, TB-17G 42-102875 (Hobbs AAF)