Mark V Diver's Helmet on Base 40"EverythingNauticaltakes great pride in bring you theMark V Diver's Helmet on Base 40". Made from iron with an antique copper finish. Early history: In1837, Fletcher & Morse Co. opened at the corner of Water and Congress Streets in Boston MA. The company began as a manufacturer of brass goods for the marine industry. A few years later Mr. Fletcher retired from the firm. In 1864, the company's name was changed to Andrew J. Morse & Son. When the company began making diving helmets is not clear. The earliest company records are for compressor pumps which date back to the Civil War. When Andrew J. Morse died in 1881 his son William F. Morse took over. In 1905, William Morse retired and management of the company was given to his daughter Elizabeth, and her husband Mark A. Lawton. The together they incorporated the company and Inc. was added to the name - Andrew J. Morse & Son Inc. The 1910 Morse catalog lists 221 High S