This file contains two catalogues:
1. A red-bound notebook contains impressions, measurements and descriptive information for seals numbered 1 – 49.
2. Printed sheets provide thumb-nail photographs of impressions and detailed descriptions of seals used by Joseph Needham to stamp the books he collected. The seals are numbers 1, 2, 3a, 3b, 9, 10, 11, 12, 13, 15b, 16a, 16b, 25, 26, 27, 29, 30 and 49. This catalogue was begun by John Moffett (Needham Research Institute Librarian) in Jul. 2018, with help from 复旦大学陈正洪教授. It was updated on 21 Dec. 2018.