Stamp: Brazil, 1954. Commemorative issue for the "Centenary of the Proclamation of the Dogma of the Immaculate Conception and Marian Year". Face value of 1.20 cruzeiros, printed in blue. (Issued on 08/12/1954)
Postmark: First day pictorial cancellation, dated September 8, 1954. Stamped in Rio de Janeiro (Distrito Federal). The postmark design is circular, bearing the inscription "PADROEIRA DO BRASIL - CENTENÁRIO DA PROCLAMAÇÃO DA IMACULADA CONCEIÇÃO DE NOSSA SENHORA" and a stylized representation of the imperial crown surrounded by radiants.
Postcard: Illustrated postcard reproducing the religious iconography of the Immaculate Conception. The image shows a full-length depiction of the Virgin Mary in traditional attire (pink tunic and blue mantle), standing on clouds and surrounded by cherubs under a starry sky. (Edition Cromocart)
Concordance
Thematic: Perfect. The stamp, the postmark, and the postcard illustration strictly converge on the same theme: the dogmatic celebration and devotion to the Immaculate Conception.
Geographic: Coherent. The postmark was applied in Rio de Janeiro, then the federal capital and center for the Marian Year celebrations in Brazil.
Temporal: Exact. The use of a First Day Cancellation (09/08/1954) enhances the piece, fulfilling the highest standard of temporal concordance in Maximaphily.