These cards captured the bright hills and cliffs, valleys and castles, towns and villages of Ireland in the 1890s.
Image created using process photogram, allows you to convert black and white photos into realistic painted color postcards.
Process photochrom invented in the 1880’s, fellow Swiss printing company. It is applied to the photosensitive emulsion for lithographic stones and exposed in the sunlight through the negative.
For hours she dwelled in proportion to the tones of the negative, and the stone remained fixed image. For every shade was made a separate printed form.
Therefore, in the production of one of the cards could use up to ten or more printed stones.
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