Johnson Exposure Calculator Envelope'
Johnsons and Hendon
Category
Photographic technology
Date
Unknown
Materials
Paper
Measurements
77 x 77 x 0.1 mm
Place of origin
London
Collection
Fox Talbot Museum, Wiltshire
NT 1525824.4
Summary
Johnson Exposure Calculator Envelope The envelope contains the exposure calculator, conversion table, how to leaflet. The envelope is white with an orange border and black writing. The follow text is on the envelope – TRADE MARK JOHNSON EXPOSURE CALCULATOR BASED ON BRISITSH STANDARD No 935/48 Made in England JOHNSONS OF HENDON LONDON, ENGLAND
Provenance
Donated to the Fox Talbot Museum by J. Hogwood.
Makers and roles
Johnsons and Hendon, manufacturer