Continuity mistake: When Dr. Sawyer is giving Kris the exam, during the part where Kris is doing the physical coordination test, we see Kris from Sawyer's point of view, and Sawyer is drumming his fingers. When the shot switches to Kris's, he is fingering his eyebrow. When it switches back, fingers drumming. Finally, when it switches back again, his hands are neatly folded in front of him.
Continuity mistake: The note that Susan wrote to Santa Claus changes in writing style between the time it's first shown and the time her mother signs it seconds later - the words "Yours Truly, Susan" are written completely differently the second time. (01:23:30)
Continuity mistake: In the opening scene, the guy bothered by Kris Kringle about the authenticity of the reindeer display is leaning in different positions between the front angle and its reverse. (00:02:00)
Answer: I don't understand the question. She looks out of her bay window and sees her daughter with Mr. Galey in his apt. Most buildings in New York are U-shaped, so looking out of your window and seeing another apartment is not uncommon. Besides, buildings were designed with an Art-Deco look back in the 1940s.