Prices, No. 321
Including Plain Hook, Knife, Fork, and Brush
Arm without hand, used as a peg arm; a hand
may be subsequently applied $25.00
Arm with wooden or rubber hand, detachable at
wrist 50.00
Arm with wooden hand and traction rod for
opening thumb from shoulder 60.00
Ball-and-Socket Wrist Joint
No. 323 represents arm with ball-and-socket wrist joint for amputation below the elbow, but not suitable for an amputation near the wrist for the reason that the space in that locality is required for the mechanism of the joint. In the various uses to which an artificial hand may be put, a change in the position of the hand is often desirable; for example, in keeping a book or paper in position while being written upon with the sound hand, the artificial hand can be turned so that the tips of the fingers will rest upon and hold the article securely in place. In bringing the arm in front of the body the ball-and-socket joint admits of the hand being brought near to the body in a very easy, life-*like manner. In other positions desired the hand may be placed at the degree of flexion most convenient and helpful and that giving the most natural appearance. No. 332, on page 72, gives an illustration of the details of the joint. The forearm and attachment above the elbow are leather, supported with steel framework same as No. 321. Wooden hand with movable thumb is furnished with or without traction rod for opening thumb with shoulder movement, but no provision is made for the use of a hook or other implement in place of the hand. A rubber hand with palm socket for implements can be attached if preferred, but is somewhat heavier. For persons not employed in laborious occupations and who have no occasion
