This section is from the book "Hill's Manual Of Social And Business Forms: A Guide To Correct Writing", by Thos. E. Hill. Also available from Amazon: Hill's Manual Of Social And Business Forms: The How-To-Do-Everything Book Of Victorian America.
No. 6 Represents the evil effect of rolling the hand too much to one side, and holding all of the fingers so straight as to completely lose command of them. The result is a stiff, heavy, cramped penmanship, and rough marks, resulting from one point of the pen dragging more heavily than the other.
No. 7 Exhibits the pen "held so tightly that the hand is wearied and the letters look frightfully." The large finger should be straightened, and the end caused to drop lightly beneath the holder. The forefinger should be brought down snugly upon the holder, and the end of the thumb brought back opposite the forefinger joint. Loosen the fingers , grasping the holder therein just firm enough to guide the pen and no more.
No. 8 Shows the result of dropping the hand too heavily upon the wrist and allowing it to roll to one side. The writer has thus lost command of the hand and arm, and the pen scratches, resulting from one point dragging more heavily than the other. The large finger should drop beneath the holder, and the hand should be brought up squarely upon the palm.
No. 9 Represents another bad position, with pen held too tightly. The writer loses a command of the fingers, in this case, by allowing the holder to fall below the knuckle-joint between the forefinger and thumb. All the fingers are likewise out of position.