| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| GFA 24/53.1253 | Malleable cast iron | 1930 – 1932 | Item: 1 photo | digitized | |
| GFA 24/53.1254 | Mettmann: annealing shop with annealing furnace | 3rd Feb 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1255 | Insulators (acid attack) | 8th Apr 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1256 | Lids M t 2030 | 8th Apr 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1257 | Lids M t 2030 | 8th Apr 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1258 | Washing machine | 8th May 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1259 | Washing machine | 8th May 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1260 | Strength testing machine | 13th Jul 1931 | Item: 1 photo | ||
| GFA 24/53.1261 | Coupling casing | 30th Oct 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1262 | Sample board | 20th Dec 1931 | Item: 1 photo | ||
| GFA 24/53.1263 | Coupling casing | 30th Oct 1931 | Item: 1 photo | digitized | |
| GFA 24/53.1264 | Welding test | 20th Jan 1932 | Item: 1 photo | digitized | |
| GFA 24/53.1265 | Welding test | 20th Jan 1932 | Item: 1 photo | digitized | |
| GFA 24/53.1266 | Welding test | 20th Jan 1932 | Item: 1 photo | ||
| GFA 24/53.1267 | Night watch fitting factory 1932 | 1932 | Item: 1 photo | ||
| GFA 24/53.1268 | Night watch fitting factory 1932 | 1932 | Item: 1 photo | ||
| GFA 24/53.1269 | Night watch fitting factory 1932 | 1932 | Item: 1 photo | ||
| GFA 24/53.1270 | Night watch fitting factory 1932 | 1932 | Item: 1 photo | ||
| GFA 24/53.1271 | Streaming test | 21st Mar 1932 | Item: 1 photo | ||
| GFA 24/53.1272 | Cardboard rolls | 29th Jul 1933 | Item: 1 photo | digitized | |
| GFA 24/53.1273 | Malleable raw cast iron control | 1932 | Item: 1 photo | ||
| GFA 24/53.1274 | Malleable raw cast iron control | 1932 | Item: 1 photo | ||
| GFA 24/53.1275 | Pan preheating oven | 1932 | Item: 1 photo | ||
| GFA 24/53.1276 | Skimmings bucket | 1932 | Item: 1 photo | ||
| GFA 24/53.1277 | Rolling barrel | 1932 | Item: 1 photo | digitized |