 At independence , a King George V 5 pence registered envelope and 1 shilling telegram form were printed in green for use in Ireland until domestic products became available . Irish telegram forms were only produced in 1 / - and 1 / 6 values . Registered envelopes have appeared in many values and sizes . The printed ( but non @-@ stamped ) registered envelopes were produced by private firms and stored by the Irish post office until needed , so envelopes from former periods , showing out @-@ dated fees in the text , often received an impressed stamp for the current postal rate , creating many subtypes for collectors . Other products have carried post @-@ paid imprint , such as commemorative and special issue postcards , including a series of St. Patrick 's Day cards issued annually since 1984 . 
