| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| GFA 41/113.1 | Product testing: pressure test | 1961 | Item: 1 photo | digitized | |
| GFA 41/113.2 | Product testing | 1960 | Item: 1 photo | digitized | |
| GFA 41/113.3 | Product testing | 1930 – 1960 | Item: 1 photo | digitized |
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