Esemplari della tipologia
Collezione privata
53 (1919) – (en) Y#21.1a: ༡༥ - ༥༣ (with dots in obverse angles)
53 (1919) – (en) Y#21.1a: ༡༥ - ༥༣ (with dots in obverse angles)
Collezione privata
54 (1920) – (en) Y#21.2: ༡༥ - ༥༤ (with dots in arabesquese)
54 (1920) – (en) Y#21.2: ༡༥ - ༥༤ (with dots in arabesquese)
Collezione privata
55 (1921) – (en) Y#21.2: ༡༥ - ༥༥ (with dots in arabesquese)
55 (1921) – (en) Y#21.2: ༡༥ - ༥༥ (with dots in arabesquese)
Collezione privata
58 (1924) – (en) Y#21.2: ༡༥ - ༥༨ (with dots in reverse arabesques)
58 (1924) – (en) Y#21.2: ༡༥ - ༥༨ (with dots in reverse arabesques)
Collezione privata
60 (1926) – (en) Y#21.2: ༡༥ - ༦༠ (with dots in arabesquese)
60 (1926) – (en) Y#21.2: ༡༥ - ༦༠ (with dots in arabesquese)