Authentic human skull specimen prepared for medical or educational use by Kilgore International, a well-known supplier of anatomical teaching materials in the mid-20th century, featuring a real human cranium with removable calvarium and articulated jaw, fitted with springs, pins, and hardware for demonstration purposes, and enhanced with hand-painted vascular and anatomical markings in red and blue throughout the interior and facial structure; the skull is housed in its original fitted Kilgore International case with padded lining, reinforcing its institutional origin and classroom use; condition shows heavy academic wear including cracking, separations, repairs, and areas of loss, with loose and detached components present, but remains a genuine and increasingly scarce teaching specimen with strong appeal to collectors of medical antiques, osteology, and curiosities. Skull 6.5"h x 4.5"W x 8"D and Box Measures 8.5" hx 7"W x 10.75"D