Central Bank of China, a group of development and production materials for the 1948 issue including 5000 Custom Gold Units (P-360), sixteen subject approval and correction sheets for the faces (10) and backs (11), thirty-two subject face sheets for the 10,000 Custom Gold Units (2), also an assortment of vignettes, photographs, models, negatives, correspondence and corrections for 10, 20, 50, and 100-Yuan notes apparently never produced, some items damaged or with notations or corrections, a rare and unusual group (lot)