Bidspirit auction | Postal history. Secured letters. Letter

Postal history. Secured letters. Letter sent from Torres Novas on 4/11/1840. Sent to Lisbon, it has a departure mark of TORRES NOVAS and an arrival mark in Lisbon from the insurance office on 6/11. It was considered part of the National and Royal Service and exempt from postage. Secured letters without insurance information are rare, as is the case with this letter.