20 Боливиано / 2 Боливара, Боливия, 1928 г.

P# 122a - Series A-C, signatures Granier, Vallejos, Palacios

P# 122a - Series A2-Z2, A3-Z3, signatures: Arce, Prudencio, Cuenca

P# 122a - Series D-J, signatures Granier, Quijarro, Palacios

P# 122a - Series K-N, signatures Granier, Quijarro, Morris

P# 122a - Series L1-Z1, signatures: Arce, Céspedes, Morris

P# 122a - Series N-V, signatures Granier, Pacheco, Morris

P# 122a - Series N1-Z1, signatures: Arce, Céspedes, Cuenca

P# 122a - Series W, signatures: Rodo, Pacheco, Morris

P# 122a - Series X-Z, A1-L1, signatures: Rodo, Céspedes, Morris

P# 122s - Specimen, series R, blue overprint twice on face "SPECIMEN", punch hole cancelled, no signatures.