>>18494043
few
>>18493995
Casement windows with divided lites
the image is of The Mintmaster's Mansion in Aarhus which is 17th-18th century, iirc, So my guess is they would be tinted/stained crown or cylinder glass. LambertsGlas and Antique English Glass do similar, although if they are the original panes, you're not going to be able to find anything like them except by sourcing windows from the period.
>>18492417
You are correct because it is a staged photo. We've already had enough lively discussion on the difference between photos of a space and space itself in these threads to last a lifetime though, don't think we need to rehash it again.