Tibet, 1921 AD., Trapchi mint in Lhasa, 7½ Skar, KM Y 20.

Tibet, Trapchi mint in Lhasa, 4th coinage series (1918-1930), type minted years 15-52 / 15-60 = 1918-1926 AD., dated 15-55 = 1921 AD.,
7½ Skar = 3/40 Srang (21-23 mm / 3,09 g), copper, scalloped shape with 8 notches,
Obv.: ... , the name of the Tibetan government starting on top (at 12 o´ clock): dga' ldan pho brang phyogs las rnam rgyal (spoken: Ganden phodrang tschogle namgye), each syllable written into one of the 8 pedals of a lotus flower. In the dotted middle circle a lion standing left.
Rev.: ... , cyclic year ༡ ༥ - ༥ ༥ (15-55) at position 3 and 6 o´clock, two dotted circles around reverse central pinwheel, inside three fishes in a counterclockwise direction.
KM Y 20 .