Fig. 3: Overview of preservation pipeline.
From: A robot-assisted pipeline to rapidly scan 1.7 million historical aerial photographs
First row, LtR: Checking for active mould using UV light. Blocked/adhered prints. Silver dust on surface of print. Second row: Removing surface mould using museum vacuum with HEPA filter and brush. Separated blocked prints. Dry cleaning silver dust with brush using a museum vacuum with HEPA filter to collect particulate matter. Third row: Print with extensive emulsion peeling. Curling prints. Chinagraph annotations. Fourth row: Vacuum packing stacked prints, interleaved with steel plates, ready for scanning. Protecting a print with emulsion peeling using a polyester sleeve. Preparing prints for the humidification chamber before flattening. Cleaning using PEC-12 solvent and PEC Pads. © National Collection of Aerial Photography.
