D22_006604 Johnson J-20 Developing Tank

Item Reference: 006604
Category: Photography
Format: Artefact
Description: Plastic cylindrical developing tank with film spiral and inner core. Lid features calculation conversions for developing times.
Date: 1949-1951
Further Information:  Does not feature the spring in the core that was introduced in 1951
Links: PDF of instructional manual

Developing Tank
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Developing Tank
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D22_006603 Patterson Contact Printer and Safelight

Item Reference: 006603
Category: Photography
Format: Artefact
Description: Yellow plastic Paterson contact printer and safelight, with black power cord, also three red printing masks, a caution note, and in original red box with a textured exterior. Also in the box were two Ilford-branded darkroom clips
Date: Mid-to-late 1950s
Further Information:  Paterson darkroom products were represented under the R. F. Hunter Ltd banner, as shown on the caution note – Paterson did not start trading purely under their own name until the mid-1960s. The product packaging does not bear its distinctive logo, introduced in 1963. It is the R. F. Hunter logo that appears on the red box.
Links:

Contact printer
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Contact printer
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Contact printer
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D22_006592 Johnson Thermometer Stirring Rod

Item Reference: 006592
Category: Photography
Format: Artefact
Description: Johnson thermometer stirring rod in original cardboard box with a textured finish, inside is the thermometer and instruction and warning pamphlets. The thermometer is housed in a cardboard tube to allow for stirring, though differs from the instructions description of a black plastic mould
Date: c. 1950
Further Information: 
Links:

Stiring Rod
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Stiring Rod
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Stiring Rod
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Stiring Rod
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Stiring Rod
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Stiring Rod
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D22_001814 Johnson Exactum Combined Printer and Darkroom Lamp

Item Reference: 001814
Category: Photography
Format: Artefact
Description: Johnsons ‘Exactum’ combined printer and darkroom lamp, in an original box packaging with an instructional pamphlet, and a sachet of printing masks. It is a varnished wooden box with a chamber for a bulb that acts both as a safelight and exposure, with a knob used to create this exposure.
Date: c. 1949
Further Information: 
Links:  Detailing the Exactum as part of ‘Johnsons No. 4 Developing and Printing Outfit’

Contact printer
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Contact printer
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Contact printer
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Contact printer
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Contact printer
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Contact printer
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D22_001804 Paterson Self-Loading Spiral

Item Reference: 001804
Category: Photography
Format: Artefact
Description: Self-loading spiral for Paterson 35 Model II developing tank, made in England, in red original box. Plastic with a black plastic spire and two clear plastic spirals.
Date: 1956-1960s
Further Information:  Paterson began developing model IIs for their developing tanks in the mid-to-late fifties, which all came with this clear self-loading spiral. Being sold on its own suggests those who bought it would be replacing a part of their model two that had broken. The clear spiral design continued into the 1960s for their model III developing tanks, though this was marketed only under the ‘Universal’ moniker
Links: Paterson Catalogue Detailing the Model II Development Process and the Spirals function

Developing spiral
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Developing spiral
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