Plating of the 'Diligencias' was made possible by the slightly shifted alignment of transfers and the common characteristics of this sheet.

Subsequently, it was part of the collection of Vicente Ferrer (who named it), Wonner, Charles Lathrop Pack, E.J.

Lee, Alfred Lichtenstein, Roberto Hoffmann, Norman Hubbard, Gene Scott and Tito Giamporcaro.

[2] Most plating of this issue has been derived from this block and it is considered the foundation upon which the technical philately of Uruguay is built.

In September 2009 it sold at Investphila in Switzerland for €432,000[citation needed] including fees (lot nr.