ola john
I don´t know any CASINO ATLANTICO in Portugal.
With the initials CA may be CASINO DE ALGES a old casino who was settled in Algés a seaside village near Lisbon, that stop circa 1927.But honestly I don´t know.I have one metallic token from this casino that says CA ALGÉS (the value is 200 (reis-coinage before 1910 when republic arrived.Then the coins are ESCUDOS).The tokens are in copper and there are also the values 100 and 500)