The suit was designed to have four joints in each arm and leg, and included one joint in each thumb, for a total of eighteen. Disconnecting the upper and lower halves made entry into the suit possible. The addition of spacers in the waist, arm, and legs would have made it possible to accommodate various operators. Four small viewing ports and a single built-in chest-mounted lamp facilitated underwater viewing. Unfortunately, there is no evidence that Bowdoin's suit was ever built. (Later I have found one picture as shown on this page )