PMB Pyro-Metol-Borax film developer

PMB Pyro-Metol-Borax film developer

  1. Ian Grant
    THE BRITISH JOURNAL PHOTOGRAPHIC ALMANAC 1952 156o

    Pyro-Metol-Borax Fine-Grain Developer

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    [TD="width: 204"] Metol
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    [TD="width: 79"] 2 gm.
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    [TD="width: 204"]...
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