Title | Date | Type | ||
---|---|---|---|---|
251 | Page 49 | |||
252 | Page 18 | |||
253 | Page 34 | |||
254 | Page 198 | |||
255 | Page 38 | |||
256 | Page 48 | |||
257 | Page 57 | |||
258 | Page 8 | |||
259 | Page 209 | |||
260 | Page 22 | |||
261 | Page 46 | |||
262 | Page 6 | |||
263 | Page 87 | |||
264 | George D. Pyper notebook, 1902 | 1902 | Text | |
265 | Page 70 | |||
266 | Page 11 | |||
267 | Page 37 | |||
268 | Page 204 | |||
269 | Page 65 | |||
270 | Page 153 | |||
271 | Page 155 | |||
272 | Page 73 | |||
273 | How diamonds are made | 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942 | Text | |
274 | Page 212 | |||
275 | Page 23 |