| LC control no. | sh 85015113 |
|---|---|
| LC classification | TR415 General TR921 Industrial reproduction |
| Topical heading | Blueprinting |
| Variant(s) | Blue-printing Photography--Printing processes--Blueprinting Photography--Printing processes--Cyanotype Photography--Printing processes--Ferroprussiate |
| See also | Photographic reproduction of plans, drawings, etc. |
| Found in | Web. 3. TEST. |
 |  |  |