TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: In Copyright TI - Mexican postage stamp commemorating Petróleos Mexicanos (40th anniversary) ID - jn7da1k AU - Mexico. Dirección General de Talleres de Impresión de Estampillas y Valores DA - 1978/// YR - 1978 AV - Witco Stamp Collection, Box 7 VL - Witco Stamp Collection, Box 7 AN - Witco Stamp Collection, Box 7 UR - https://digital.sciencehistory.org/works/jn7da1k AB - Mexican postage stamp issued to commemorate the 40th anniversary of the nationalization of all petroleum reserves, facilities, and foreign oil companies in Mexico and the establishment of the state-owned petroleum company Petróleos Mexicanos. The stamp features an illustrated depiction of an oil derrick. KW - Commemorative postage stamps KW - Mexico KW - Postage stamps KW - Science on postage stamps KW - Oil wells KW - Petroleum industry and trade KW - Petroleum industry and trade--Government ownership KW - Petróleos Mexicanos LA - Spanish ER -