The photocopies with purple ink were stencils. I last remember them in the late ’80’s. The original would be written on a stencil, and the stencil placed in the machine which would make copies from them.
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The photocopies with purple ink were stencils. I last remember them in the late ’80’s. The original would be written on a stencil, and the stencil placed in the machine which would make copies from them.