These stamps were created to promote blood tests in NYC.
"See Your Doctor : Be Examined : Have a Blood Test : Bureau of Social Hygiene : N.Y.C. Health Dept. Cooperating with N.Y. State Health Dept. & U.S. Public Health Service"
This poster encourages couples to be tested before marriage to ensure healthy children.
"Every baby is entitled to be born healthy : Blood test & examination should be made before marriage by your doctor or Bureau of Social Hygiene Clinic, 51…