Bones and Ligaments of the Shoulder Articulation
Ligaments of the acromio-clavicular and scapulo-humeral articulations (joints of the shoulder). Labels: 1, superior acromio-clavicular ligament; 2, caraco-clavicular ligament; 3, coraco-acromial ligament; 4, caracoid ligament; 5, capsular ligament of the shoulder joint; 6, ligamentum adscititium, or coraco-humeral ligament; 7, tendon of long head of the biceps muscle.
Miller, F. E.; Hunt, H. L.; McCormick, F.J.; Burr, B.; & King, M.L. Domestic Medical Practice: A Household Adviser in the Treatment of Diseases, Arranged for Family Use (Chicago: Domestic Medical Society, 1919) 21
Courtesy the private collection of Roy Winkelman