From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Page from a study guide showing microscopic views of different fibers.
| Identifier | ExFiles\Box 24\2\ Scan247 | |
| Date | 30th January 1923 guessed | |
| 668 DIRECTIONS FOR THE STUDY OF FIG. 5.—(a) Rag (Cotton and Linen). FIG. 5.—(b) Manilla and chemical wood-pulp. | ||