Two metal devices for holding deguerreptype plates during development. In use these would slide into the metal plate holder of the mercury developing box with the same accession number. They would then hold in place a smaller daguerreotype plate for development. The slot is to allow the plate removal device to operate.
contributor
MCS
date
0000-00-00
type
Equipment
format
plate holder
Identifisering
1990-5036/1076
Kilde
The National Media Museum Bradford, ex Kodak Museum collection
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