Marion and Co., compiler · London : Marion and Co. · leaf 183
es's black varnish. Either is applied with a some- what large brush. If before blocking out the sky printed just a very light tint, it is sufficient to block out on the back of negative only, keeping the colour about a sixteenth of an inch away from the horizon line. In this case the narrow fringe… … shape shown in the sketch — that is to say, we simply
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