(x) El Banco de la Nacion Boliviana, a group obverse proofs mounted on card, including 1 (2), 5 (2) and 10 pesos, 1911m no signatures and serial numbers,, (Pick 103p, 105p, 106p, 107p), minor handling the card backing, design unaffected (5 notes).
Estimate: £200 - £300