1930年印度新金山中国渣打银行5元，无编号，当时的试色样票多数可于印刷厂员工的随行书册中找到，方便他们向潜在客户(大多为发钞机构)展示设计这些试色钞以不同颜色印製，而且没有水印，令人难以区别出正式的官方试色样票，正式试色样票是银行辨别伪钞的重要凭据，大多数版别的试色钞都比正式试色样票来得稀有，PMG 63，曾黏合，极罕，编者首遇之双面印刷试色样钞。The Chartered Bank of India, Australia and China, $5, 18.8.1930, without serial numbers, blue, black and red, supported arms at upper centre, male Roman soldier at left, small size red 5 at lower centre, watermark area at right, printed manuscript of Fergusson at lower right, reverse in similar colours, junk boat and sampan right of centre, 4 punch holes with SPECIMEN WATERLOW & SONS LTD printed in red. Colour trial specimens from this era are generally found in travelling salesmen books which were given to the printers employees to show their work to prospective clients. These were often money issuing authorities. The notes were printed in different colours to the issued notes and have no watermark to prevent confusion with official true colour specimens which were given to banks to differentiate between genuine and counterfeit notes. For this reason colour trial specimens are often much rarer than true colour specimens with few exceptions. For this type, both types are more or less equally rare and highly desirable,(Pick 53cts), PMG 63 Choice Uncirculated (Previously Mounted) and very rare. This is the first time that a fully printed note on both sides is encountered by the cataloguer
