Bidspirit auction | Postal history. Pre-philately. Secure Letter

Postal history. Pre-philately. Secure Letter from the SNR, sent from Vila Viçosa on 18.9.1822, markedSafeVILLA VICOZA (VVC-Sms1 rar10) in sepia, to Évora, redirected to Estremoz. The only known letter with this mark