Claude
The cachet features a black-and-white photograph of a crowd of children, primarily of diverse backgrounds, with the text 'United Nations Study of Population Trends and Development' in elegant typography below, accompanied by the UN emblem. The stamp block of four shows 11-cent United Nations stamps depicting silhouetted family figures (adult male, adult female, and child) against a colorful stained-glass oval design, with French text 'Tendances Démographiques et Développement' and 'Nations Unies.' The postmark is a circular United Nations, New York hand cancel dated November 29, 1965. The block of four is a corner selvage block with plate markings visible.
Mistral
This First Day Cover features a black-and-white cachet photograph of a diverse group of children, with the United Nations emblem and the text 'United Nations Study of Population Trends and Development.' The block of four 11-cent stamps shows silhouetted family figures against a colorful stained-glass oval design, with bilingual text in English and French. The postmark is a circular cancellation with the text 'United Nations Nov. 29 1965 New York.' The cover is in good condition with clear, legible details.
(The automatic summaries sometimes misidentify the postmark as part of the cachet artwork.)
