Discuss: A blurry old snapshot of a foot and shoe

This 5-inch by 3½-inch photograph was printed on Kodak Velox paper. It is stamped "841D" on the back. That's all we know.

Questions:

• Why was this snapshot taken?
• Was it intentional, or a mistake?
• Why did the photograph survive all these decades?
• And why did I acquire it?
• What kind of shoe is that?
• What color is it?
• Whose foot is that?
• What does the shadow tell us about this woman?
• What does the shadow tell us about the time of day?¹
• The time of year?
• How can we be sure this photograph was taken on Earth?²
• Could this photograph be considered an abstract work of art?
• Discuss.
• What type of frame would be best for displaying this photo?
• Wait. Why are you framing this photo?
• Seriously.
• OK. Getting back on point: What size is this shoe?
• What does the design of the shoe tell us about the cultural mores of that time?
• Do you think German Expressionism influenced the photographer's angle for this photo?
• What does it all mean?
• Is this Papergreat's worst post ever?
• Seriously.

Footnotes
1. Be sure to show your work for full credit.
2. Sponsored footnote: Maybe it was taken on Mars. By Matt Damon. See The Martian, now playing in theaters everywhere.¹

Secondary footnote
1. OK. That footnote wasn't really sponsored. But it could have been, for the right price.¹

Tertiary footnote
1. $1.75 is my final offer.