MICHEL describes the color as orange brown. YVERT indicate brown. BELGIAN Catalog distinguishes 2 colors. The main color is yellow brown (BE 1026A). A color variant is described as brown (BE 1026Aa).
Date of Issue: BELGIAN Catalog indicate 1.10.1957. 25.9.1959 is the date mentioned in MICHEL.
纸: MICHEL mentions only "normal" 纸质.
BELGIAN catalog mentions 2 different papers:
N° 1026AP1: (normal) dull paper. Under UV light, it has a dull glow.
N° 1026AP2: (normal) white paper. Under UV light, it has a white-blue glow.
