A 1,250-lire stamp commemorates the 400th anniversary of the Union of Brest-Litovsk. It depicts an angel, hovering above the terrestrial globe, holding two crosses, symbolizing the effort of the Eastern and Western Churches to achieve unity. Two hands representing God are above the angel.
A 2,000-lire stamp commemorates the 350th anniversary of the Union of Uzhorod. It features a cross bearing branches, symbolizing that it is the Tree of Life, with a Latin Episcopal miter and Byzantine miter on the transverse part. In the background, inscribed within a circle representing the "oikumene," are the words CRUX FIDELE ARBOR UNA NOBILIS.
Professor Giovanni Hajnal designed the stamps. Both stamps include the words CITTA DEL VATICANO and the Papal Crown and Crossed Keys at the lower left and the value and an inscription indicating the commemorated event at the lower right.
The stamps are vertical, measuring 40 x 30 mm, and have a perforation of 13 1/4 x 14. The Istituto Polygragico e Zecca dello Stato Italiano printed 450,000 complete series on white chalky paper in color rotogravure and issued in sheets of twenty.
Crimando, Thomas I. "New Issues." Vatican Notes 44, no. 6 (May 1996): 4, 6.