I was reminded this past weekend that there is an example of the style of window I'm looking to make basically in my backyard. See the windows with the pretty red shutters? The big ones on the bottom? Yea, that's the style. The upper part of the windows don't move, and aren't shuttered. The bottom windows do swing, and are shuttered. The site isn't open for visitors right now, but one of these days when I don't feel like someone sneaking around a historic site in the middle of the night I have to go back and take some pictures. Not nearly as expensive as going to the Netherlands to see examples.
The Hasbrouck house was built in 1721, which puts it out of the SCA's acceptable period. But the style of windows are recorded in paintings much earlier. "Officer and a Laughing Girl" is between 1655-60, "The Little Street" is between 1657-58, and "The Milkmaid" is 1658. (All Vermeers.)
Adriaen Van Ostade records similar windows in 1640's "Old Woman by Window" and 1644's "A Peasant Settling His Debt".
Pieter Jansz Saenredam records windows in his work "Slot Berkenrode" (1628) and "View of the Grote Markt in Haarlem" (1629)
So almost a full 100 years earlier than the local example, we see evidence of this window type in Europe. Huh.