Search for the Past Box  LbNA # 51981

Placed DateJan 10 2010
CountySan Francisco
LocationSan Francisco, CA
Planted ByAgent F-Word    
Found By fleetwood7
Last Found Mar 1 2010
Hike Distance?

With all the alarmist reports of the death of reading and the demise of public services, where better to hide a letterbox than behind the least-read book in the San Francisco public library system?

Alas, the SFPL does not keep records of the least-circulated book in the system, so I had to guess. I figured on something old - prehistoric - fossilized, even! And something requiring digging - something buried in the lowest stratum of the shelving.

Search the lower spines til you find a particularly ancient tome - a dark blue-green, trilobite-decorated, a white call number ending in 2 - draw it out carefully (paleontologists are always careful) and find the buried artifact behind!

(Cross-posted at