About #133 - 50 francs Type 1950 Treasury
50 francs Type 1948 1948-1956. Yellow, green, violet and multicolor. Farm woman with fruit at left, man planting a tree at right. Back: Farmer with scythe at left, woman with sheaf at right. Watermark: King Leopold I in profile. Designed by Louis Buisseret. 140 x 76 mm.
#133a: Signature w/ Van Heurck (1.6.1948).
#133b: Signature w/ Williot (3.4.1956).