I have reproduced the J. E. Albright decal on this 1914 Original which this key had originally. The serial number for this particular key is stamped on the damper. Scroll down to see the video of this key in action. It works quite well and I use it all the time.
I am sending the following with this key in the video:
VVV This is a 1914 Vibroplex Original. I restored this key and have put it back on the air after many years of sitting on a shelf somewhere. This is August in the year 2014 that I have made this video and found it appropriate to showing this key as it is now 100 years old. Thanks for watching and 73 de W0YBS. TU dit dit