| Archive Number: | 2012.47.0415 | |
| Title: | Circular cutting in the bedrock. | |
| Negative: | Section Υ 42 | |
| Rating: | 2 | |
| Section: | Υ | |
| References: | Notebook: Υ-1 Notebook Page: Υ-1-31 (pp. 53-54) |
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