Open drain
| Thumbnail | Title | Description |
|---|---|---|
| Open drain, Jeepcoat area, April 1961 |
Open drain, Jeepcoat area, April 1961 Col. Neg. sheet 25 2F B/W Neg. sheet 428 1G |
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| Open drain, Jeepcoat area, April 1961 |
Open drain, Jeepcoat area, April 1961 Col. Neg. sheet 19 1A B/W Neg. sheet 421 1D |