It shows the clubface motion through impact with 2 variations. First, the clubface looking at the target and moving on a cross line path. Second, the clubface perpendicular to the arc as it moves through the impact zone.
If you have the book with this picture in it, could you scan and .pdf a file to me at ldeit@eee.org or ldeiteee@uia.net ? (note: The first letter is a lowercase L)
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