"Clinitest" Test Tube Five small "Clinitest" test tubes in original packaging. Box reads: "SIX/No. 2132/CLINITEST BRAND/TEST TUBES/AMES COMPANY, INC./ELKHART, INDIANA, U.S.A./Made in U.S.A./Printed in U.S.A." Used to detect the presence of glucose in urine. [1900-1949]