This Nautilus Emergency Aquatic Breathing Apparatus by Thomas Willeford and Brute Force Studios is one of several mannequins that greets visitors at the Nemo's Steampunk Art & Invention Gallery exhibition.
This assemblage by Andrew Chase of Chase Studio is 48 inches long, weighs 30 pounds, and is made of steel, aluminum and copper. It has working "searchlights" too.
See more Metapen pics at Mavrov's blog here.
Incorporating a Samsung monitor, Dell PC, and Microsoft Webcam, the workstation was fashioned from an early 1900s shower and copper tub, along with antique pipes and fixtures.