"George Cleveland" wrote ...
http://fishskicanoe.tripod.com/geopics/IMG_0223.JPG

Looks a little different now.

http://inciweb.org/photos/thumb/phpT...eg&w=800&h=800



http://people.csail.mit.edu/rahimi/helmet/

(Might have gotten that here.... no claim to the original find)

Also, not too sure if it applies to houses.

Dan