Morse Keys Info etc.

The photos below provide some different views of the Marconi Z50 morse key with the Marconi Type 365EZ key for comparison. The Z50 key is the "Last of the Mohicans" in a manner of speaking. I think it is the last of the Marconi company keys. First is the front view of both keys.

Next is the rear view showing the ID plates of both keys to compare information shown.

Last is the covers-off side view of both keys.