In case you're all not sick of this fascinating topic already, I made a visit
to the vast (or, half-vast) Walter Library of Triviata/Masonite Cow Hall of
Fame (open 365 days per year, to a select few or anybody else who shows up),
and pored over a 1911 Radford's detail book, and through three issues of his
magazine (1925, 26 and 28), and didn't see no updated Queen Anne sash or
Marginal Lights.  It was all Colonialoid and/or Prairiesque; no frou-frou
Victorian Revival to be seen.

Therefore, what our colleagues saw was most definitively either an optical
illusion or a mass, non-simultaneous, geographically discrete hallucination.
No other explanation possible.

Then again, maybe Sears or Aladdin was selling such windows in their kit
houses...... What say ye, merry gentlepersons?  Anybody got any of their
house catalogues?

Ralph