Bidspirit auction | This is a 1970 fundraising

This is a 1970 fundraising letter from Stewart L. Udall, the former U.S. Secretary of the Interior, on behalf of the Planned Parenthood/World Population (PP/WP) organization. The letter discusses the environmental and social crises of the time, attributing them primarily to overpopulation and advocating for population control measures. Lot comes with original envelope addressed to Piere Delfausse.