I'm so very sorry I havent visited your sites. I'm chasing a dragon, maybe this is the best thing I've ever done, maybe I'm stupid. All I know is that I have no time for anything.... Including visiting your sites, actually looking at your shots, and saying anything meaningful. I'm thinking of knocking am3 on the head for a while. Its rude that you comment on me and I don't comment on you.
This is the window where Fox Talbot made his first "Calotype". His process produced what we would call a negative, but he called a "transfer". His process was technically superior, as the transfer was transparent-enabling multiple positive copies. Daguerreotype "Negatives" were opaque. He shot himself in the foot when he demanded royalties on every photo that was taken, so competing solutions were found that circumvented his patent. He died a broken man, constantly grizzling about how rich he could have been.
FYI, the reason that this is "The" window, is because in his huge mansion, this was in one half of a long room that he had turned into a workshop/studio. The other half was used a playroom for his kids.
28 mm (35mm equiv.)