Escudo of Luís I

I'm not entirely convinced that an "Escudo" coin was issued under King Luís I of Portugal between 1864 and 1889, as the escudo wasn't introduced as the national currency until 1911, well after his reign ended in 1889. What I can confirm from handling Portuguese coins over the years is that Luís I's mints produced silver pieces in réis denominations, such as the 1000 réis, which often bore his profile on one side and national emblems on the other. These were struck in Lisbon, typically from .917 fine silver, though exact compositions varied with available bullion. Mintage records for many years are incomplete, possibly due to fires or bureaucratic losses in the 19th century, so precise figures remain elusive. If such an Escudo exists, it might be a pattern or error variant that slipped through, but in my experience, it's more likely a modern collector's myth. That's the extent of it.