I was going through a friend of mine's attic. He pulled out what looks to be a factory dual point tach drive. The cast number on it is 46I or 461. On the side of the housing there is a little flap-exposing a round hole underneath the breakerplate. The tags# are "1110985" and the date looks to be "0 F 10." Does anyone know what this is off of-or was it an over the counter part?
THANKS-
Richard
THANKS-
Richard
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