The banknote of 25 Gulden Mr. Mees first came into circulation in 1931 and was subsequently issued with different printing dates from 1931 to 1941, these dates can be seen on the back of this banknote.
There are 2 different signatures: Delprat / G. Vissering and Westerman Holstijn / Trip

Netherlands 25 Gulden 1931 Vf serial LG031133