Coming from the Napier shipyard in Glasgow,[1] the ship was christened in hommage of the Governor Sir Henry McLeod's wife and began its Port of Spain–San Fernando route in November 1845.

[3] The Lady McLeod's bell was retrieved and has been regularly displayed by the Trinidad Philatelic Society.

The Lady McLeod only transported letters bearing stamps, or pre-paid mail of the subscribers.

[4] The imperforate stamp's illustration was a white ship on a blue background, with the initials "LMc L" printed underneath.

[5] Lithographically printed,[1] the stamp was cancelled by a cross drawn by hand or by ripping up a corner.