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Ferrotype

The name ferrotyping comes from smooth ferrotype tins used in the print-glazing process. Today this process can mean the print-glazing process with chromium plated steel tins, plastic, glass or any other smooth hard surface. All old photographic papers had a special glossy emulsion and by pressing into firm contact with a smooth surface when drying, the fibres of the gelatin became compressed and formed a smooth glossy print surface.

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John Murray with six others
by Unknown photographer
1880s
NPG x126861

Frank Pick
by Howard Coster
1939
NPG x22842

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