Originally called Dr. Macaura's Pulsocon and later renamed Dr. Macaura's Blood Circulator, this early hand crank driven vibrator was produced some time around the late 1800s, and remained in production well into the 1920s.
The device was held in one hand, pushed against the desired body part, and hand-cranked to caused the invigorating vibration required. Apparently the action that Dr. Macaura's invention created was a plunging motion, on the desired body part.
The plunging motion could be eventuated with the addition of applicators, that would screw into the end of the device for more focused sensations. Apparently turning the handle produced a surprisingly intense vibration over the affected area. It came with a full complement of paperwork (16 and 58 page booklets and a pamphlet). What more could a lady need from a blood circulation stimulating device. One assumes, despite the photo on the right, that a lady could self stimulate most required areas of her body herself, in the privacy of her own boudoir.