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Canadian printer & publisher (1920)

Toronto, Maclean-Hunter [etc.] · leaf 235

An illustration from Canadian printer & publisher, 1920, leaf 235
x 251/2- As in our older model ovens, the matrix isplaced face down in the drying chamber, sothat all moisture is driven from the facethrough the back of the matrix, which isthe correct method of scorching matrices. The fact that it is possible to use this im-proved oven for scorching both curved…

Printing

Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.

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