The Vintage J. Sklar Mfg Rotary Compressor Evacuator Suction Unit mdl 100-65 is a rare and collectible piece of medical equipment manufactured by J Sklar Manufacturing in the United States. This suction unit is designed to evacuate and suction fluids and debris from the patient's oral cavity during medical procedures, making it a valuable and unique artifact for collectors of medical devices. Its vintage design and functionality make it a sought-after item for those interested in the history and craftsmanship of medical devices.