That's Kittredge's pedal powered sub. It's a K-250 without motors.
Jon
************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM
Act of 2003. Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.
Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.