Pei Hai Bank, group of two notes: 1 Chiao, Chiaotung, ND (1938), and 1 yuan, 1942, serial numbers A0129111, A1875778,(Pick S3541, S3552a), graded PMG 53 About Uncirculated and 30 Very Fine, the 1 chiao note has only 3 others which are graded higher in the PMG population report (2).
Estimate: 1000 - 2000