First Irish transatlantic flight cover

The First Transatlantic Flight by Aerlínte Éireann (Irish Air Lines / Aer Lingus) from Dublin & Shannon to New York, operated using a leased Lockheed Super Constellation on April 28, 1958.

​Commemorative Cachet: Shamrock cachet inscribed "AN CHÉAD EITILT – DUBLIN • SHANNON • NEW YORK / 1st TRANSATLANTIC FLIGHT / 28 4 58 / AERLÍNTE ÉIREANN".

​Stamps & Cancellation:

​Irish Airmail stamp: 1/3d (1 shilling 3 pence) red/vermilion depicting the Angel Victor / Flight over Cashel.

​Irish definitive stamp: 1s brown (Sword of Light design).

​Postmarked in Dublin (BAILE ÁTHA CLIATH) on 27 APR 1958, timed for the morning departure the following day.

​Transit/Arrival Markings (Reverse): Machine receiving postmark from NEW YORK, N.Y., APR 29, 1958 with the postal slogan "BUILD YOUR FUTURE WISELY, SAFELY / U.S. SAVINGS BONDS".

​Sender/Recipient: Sent from Drumcondra, Dublin, to an address on Provost Street, Brooklyn, New York.