The stracci tinti method was innovated in the Dutch Republic between 1650 and 1750, making Dutch blue paper a coveted commodity for artists including Venetian pastelist Rosalba Carriera (1673/75 ...

OREGON CITY – The long struggling Blue Heron Paper Co., which filed for bankruptcy protection 14 months ago, will close for good Friday. And when the mill turns out the lights, it will mark the ...

Red and Blue Fibers ... Security threads, which now run the width of the currency, are not a new invention. In some early versions of paper currency, thin security threads were added to paper.

At almost 94 years, he has kept in touch through current employees of Blue Heron Paper Co., learning of changes. As we have spent more time together in the past few years, ...