[CW] Foot key?

[Jeffrey Herman]

I was browsing through my 1965 edition of Hints and Kinks (cover price:
$1.00). On page 6 appears the usual SCHEMATIC SYMBOLS USED IN CIRCUIT
DIAGRAMS but what caught my eye were the symbols under the KEYS heading:
Both a hand key and a foot key appear; right away I thought QLF but
then realized that the ARRL probably didn't have that kind of sense of
humor. Then I thought they meant "foot pedal" -- we use those as a PTT
at all our USCG stations so the op can keep his/her hand free during
xmit. But really, a foot pedal is a PTT switch, not a key in the Morse
sense. So I must ask, were/are there Morse foot keys? Has anyone
ever sent Morse using one? Seems kind of awkward. Can you imagine
suffering from a glass ankle?

73,
Jeff KH6O