It Happened One Night."
-SM Stirling, Conquistador (New York, 2004), Chapter Seventeen, pp. 419-420.
(I had never heard of It Happened One Night and have thought to google it only on the second reading of this novel.)
The reporter's style might be time warp stuff but his camera is an anachronism - wrong time stuff. But this is going to happen if we ever have this kind of cross-time travel.
I read that one Batman TV animated series had styles of clothes, cars etc from the late 1930s when Batman started but also had up-to-date information and computer technology: a synthesis of nostalgic period charm dated-ness with real time cutting edge-ness, easily rationalized by saying that the series is set on an alternative Earth.
Am I lingering too long on the minute details of one novel? Certainly not. A dense and rich text invites total immersion of its readers in its fictional world. It is clear that we have in no way exhausted the wealth of the Commonwealth of New Virginia.