Thanks to Marilyn Levine for allowing me to use this picture of her artwork. She's a sculptor working in Oakland, you can visit her website here. She's looking for the current whereabouts of this piece, read more here.
The Knapsack Subcommitte takes its name from the humble "backpack" of yore. We don't call our trips knapsack trips anymore, but we've retained the name for its unique feeling, and historical connections to the early Sierra Club outings.