The Bay Area Knife Collectors Association puts on this annual exhibition of exotic cutlery. Edged-weapon fanciers, and those who appreciate fine artistic metalwork, will like this. It's being held this year in the Salon Ballroom at the South San Francisco Conference Center, 255 S. Airport Blvd., South SF. Admission is $6; hours are 10-5 Saturday, and 10-3 Sunday. Check out their web site: www.bakca.org/