In the world war 2 period, there were many banknotes that were issued for any occasions. Their different apperance were not fit into any series so they were classified as special series.

50 Satang banknote front
50 Satang (1946)

1 Baht banknote (Kong tek) front
1 Baht (Kong tek) (1942)

1 Baht (Invasion notes) front
1 Baht (Invasion notes) (1946)

50 Baht (Mourning notes) front
50 Baht (Mourning notes) (1945)

1000 Baht front
1000 Baht (19xx - 19xx)

Appraisal price ; click on each denomination