1923 wmk. "Se" 4d slate block of four tied to a registered cover to the US with small cds's RATHMINES / T.S.O / 28 SP / 23, the first day of issue. Backstamps include a clear strike of the very rare and short-lived transition double-ring cds RATH Ó MÁINE. O.C. Á CLIATH. Hib. D7.
Despite a slight oxidation reaction between the stamp ink and the paper of the envelope, a very rare FDC of Exhibition importance.
This Product was added to our catalogue on 23/04/2009.