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camerawiki: Ruvinal
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camerawiki: Ruvinal: lens and shutter
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camerawiki: Ruvinal III, NKK Wester shutter, Wester lens
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camerawiki: Ruvinal III, Model-A shutter, Seriter lens (2)
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camerawiki: Ruvinal III, Model-A shutter, Seriter lens (1)
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camerawiki: Ruvinal: case
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camerawiki: Column on the Ruvinal Six (Jan. 1955)