The extremely low rate of 1/4 cts de Peseta for local printed matters and newspapers was in force from 1872 (resp. 1869 with an equivalent of 1 Milesima de Escudo) to 1920. The 4/4 cts stamps treated here were printed from 1876 to 1920 in a great variety of shades of green. Though a host of copies were printed during more than 40 years, postally used items on commercial covers/wrappers are not easy to find - mostly they found their way into the waste paper basket.
Around 1900 for tourists it was a common practice to stick a whole sheet of of the 1/4 cts stamps on sheet or even make a cover out of them - a whole sheet had the value of 25 cts - the single foreign letter rate - a nice triviality! Perforated copies of these stamps always were fabricated privately to simplify the handling.
Look here to see some commercial postal usage of this stamps on cover and on wrappers.
Engraver: Luis Plañol (4/4 Céntimos) and José Espinós Gisbert (1 Céntimo) | Typographic printing of the F.N.M.T. | Sheets of 25, 50 or 100 (4/4 Céntimos) and 200 (1 Céntimo) | Perforation: unperforated | First issued: 12.1877 (4/4 Céntimos) and 8.1920 (1 Céntimo) | Valid until: 11.01.1935 | No control numbers on the reverse