[Report 1970] / Medical Officer of Health, Hemel Hempstead Borough, Hemel Hempstead R.D.C., Berkhamsted U.D.C., Berkhamsted R.D.C., Tring U.D.C.

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[Report 1970] / Medical Officer of Health, Hemel Hempstead Borough, Hemel Hempstead R.D.C., Berkhamsted U.D.C., Berkhamsted R.D.C., Tring U.D.C. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.