peeking through a patch of lawn in a spot that was once home to a much celebrated san francisco conservatory, this bit of blue and white encaustic tile would have been installed nearly 130 years ago.
it was uncovered last week during an open class-room research project where a work study group unearthed the amazingly intact tiles.
they had apparently been a part of the flooring of the once grand sutro conservatory which was demolished in late '30's where the land was then converted into the golden gate national recreational area.
Read more: http://www.sfgate.com/bayarea/article/High-schoolers-dig-into-S-F-history-3904219.php#ixzz27zOH6Bgo