Vintage video touts the wonders of telegraphy

Jim Wades, WB8SIW, International President of the Morse Telegraph Club, posted a link to this video on the slowspeedwire Yahoo Group. He writes:

This video is just too good.  Both land line and radiotelegraphers will enjoy this immensely.  Sounders in resonators, early teleprinters, NZ HRO receiver copies, mercury vapor rectifier tubes,  shortwave transmitters, a great view of the Queen Mary’s shipboard radio room.  It’s all here.  Enjoy!