Streamlined K2 tender?

[NW Modeling List]

To add to this discussion on K2 tender trucks here is an image from the VA Tech  collection of 122 when she looked to be brand new at Roanoke Shops.

http://spec.lib.vt.edu/imagebase/norfolksouthern/full/ns870.jpeg

The previously posted photo of 129 is dated 02-04-46 so I would say the engine was newly streamlined in that photo.

Here are photos from my collection, 129 at Hagerstown 02-20-54, and 130, 131 same location, different date. Does it look like the bearing boxes have been changed or the trucks replaced by this time?  I have also noticed that the spoked lead truck wheels on all the K2's were replaced at some date.  Can Ed King or Col Jeffries shed some light on the changes?

--Rick Morrison

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