[CW] Speed Key = Bug Key?

[Raymond Lee]

As far as I know, the term "speed key" is synonymous with mechanical
"bug" key.  However, a Vibro-keyer (a single lever non iambic paddle)
was depicted on a Speed Key Certificate (see attached picture) issuing
by the USN in 1963. Could some naval veterans give a few words on this
issue please?

73's de VR2UW
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