Female pelvis from above, showing diameters of brim. a, Iliac fossa. b, Crest of ilium. c, Anterior superior iliac spine. d, Tuberosity of ischium. e, Symphisis pubis. f, Sacrum. g, Coccyx.
Handbook of Obstetric Nursing, 1902, by Francis W. N. Haultain and James Haig Ferguson.
Name of engraver not given.