Hi wonder if anyone can help me with valuing my old banknote Ive had in my collection for over 30 years 1948 Republica Portuguesa 2 1/2 Dois Angolares E Meio banknote number B 016528 Decreto number 37.086 printed on the bottom is Thomas De La Rue & Coy ltd londres inglaterra. note is in very good condition can anyone point me in the right direction of its possible value? thanks