Widal Typhoid Test Kit This is a Widal Test kit contained inside a square faux-leather box made of cardboard with a push-fit lid. Inside are stoppered pipettes, a microscope slide, a clear glass stoppered bottle containing typhoid agglutometer suspension, its instruction leaflet, and a slide-in case containing other equipment for blood dilution. Made by Parke & Davis, this kit was developed in 1896 to test blood for enteric fever (typhoid). 1875-1925