1912年印度新金山中国渣打银行100元试色样票，无编号，PMG 61，有黏贴，香港纸钞中经典版别，又称「独木桥」，不论样票或流通票的真品均难以一遇，此版别发行期短，假票横行，今人常误当假票为真票，正因为缺乏参照的样本。此款试色票仅有3枚经PMG评级，此票为最高评分，经典逸品，绝对顶级的收藏品。。
The Chartered Bank of India, Australia and China, $100, colour trial, 1.2.1912, without serial numbers, blue, grey-green and black, Bank arms at upper centre, walkers on solitary bridge at left, walkers on stairs to pavilion at right, printed manuscript signature of Dickson at right, reverse green and black, the old Bank building at centre, hole punch cancelled,(Pick 45ct), PMG 61 Uncirculated (Previously Mounted). Of the highest rarity and a classical type note in the Hong Kong series. This note is colloquially known as the Solitary Bridge locally and genuine examples (including specimens, colour trial and issued notes) are all extremely rare. This series was relatively short lived due to prolific counterfeiting and many people today often mistakenly believe the contemporary forgeries are genuine notes. Hopefully the appearance of this note, along with the true colour specimen and a forgery will help collectors to gain more knowledge of this type. Only one of three notes graded by PMG and this is the single highest graded note. A truly magnificent note.
