Car identity?

[NW Modeling List]

I have a Southern Railway conductor's book from 1934. In it Mr. C.P. Snow listed a box car as N&W 122000.

Any idea what it is and how to model it?

Sent from Dave Bott' iPhone
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist6.pair.net/pipermail/nw-modeling-list/attachments/20141102/3f6b5d45/attachment.html>