拍品描述： 印度尼西亚银行一盾试色样钞4枚一组，包括黑白正面试色样一枚，蓝色正反面试色样一枚及全色正面试色一枚，PMG61NET-65EPQ；Indonesia, a group of progressive proofs for 1 rupiah, black and white die proof, (uniface obverse only), sngle blue colour die proof (uniface obverse and reverse) and full colour specimen (uniface obverse only), this group showing the progression of printing for a newly designed note,(Pick 38pp, 38pd, 38p and 38s), PMG 61NET to 65EPQ. Very seldomly presented in this format and an interesting group (4 pieces in total).