Well, here is a card which enriches my flag card collection!
The portuguese national flag is a 2:3 rectangle divided vertically into green at the hoist (2/5 of the flag’s length) and red at the fly (3/5). Centered in this partition a coat of arms consisting on an armillary sphere charged with the traditional Portuguese shield.
there are few versions regarding the symbolism of the flag.
According to one of them, the flag means to symbolize Hope (the green colour) and Sacrifice (the red colour).
According to another one, the green and the red colour were adopted by the republicans without this symbolism, which was added later to give the flag more "dignity". It is a typical case of symbolism emerging from the design.