Something I've never thought about was, chaining your bicycle up in 1921. I guess when one thinks back to this time in history you don't think much about think much about thieves. Most people at this time didn't even lock their doors and even slept with the windows open at night. So it was kind of out of place for me, when I saw what I saw in this photo. While I was browsing the Shorpy site, I came across this photo from 1921 Washington, D.C.. If you look in the lower left hand corner you will see a nice old bike. If you click on the fi=ull size version of the photo you will see that the bike is actually chained up. Also look closly at the seat. What an angle that fine gent has it at!

Link to much larger version- http://www.shorpy.com/node/11626?size=_original