Here is a 1871 dated Portuguese red on light brown Fiscal / Revenue stamp with a face value of 60 Reis IMPOST DO SELLO tax stamp 8th March 1871
There is another stamp of the same date and year, I have compared them to see if the stamps have an over lap of a signature but there no cross over of signature.
Issued in the reign of King Luiz I of Portugal
I do combine postage on multiple buys