LOST: 3 keys on red stanford lanyard in History Building Main Quad

Hey guys, I lost my room, bike, PO Box key around the History Building area in the Main Quad. It's attached to a red stanford class of '14 lanyard so it's really easy to spot. Also, the po box number is written on the po box key so it should be easy to track me down, if that's necessary.

please call 650 353 0368 if you have any information on my keys!

Thank you so much, expect reward.