To the best of my knowledge:

The hollow handle knife has a 6.5" blade w/ saw back and a knuckleguard (guard wrapping from pommel to hilt) with a hole in the center-tip. It came with a shealth with a protruding knob that when the blade was inserted on top of became a wire-cutter and the sheath also held a whetstone and signal mirror. The hollow came with ( and i just checked it this morning) very fast liquid-filled button compass ( no bubbles )and a survival kit contained in a tube-capsule.

Made by: Marto in Spain
Imported/Distributed by Gutmann
Called the Explorer ( aka Brewer )
Designed by a South American Explorer/Naturalist named Brewer.

Unfortunately unavailable

but just for you - currently available on ebay
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2192418420&category=43326

and no I'm not the seller.