A bit of Pyrex ephemera from 1956. These newspaper printing plate-making "flongs" were produced by Rochester Electrotype & Engraving for newspaper ad printing. Modifications would be made to add dealer names and info. Normally, these were destroyed in the plate-making process and, even if not, were discarded afterwards. The smaller ad was also seen altered to promote the all pink bowl sets, with no change to the copy. At right is the ad (with prices adjusted) made by the larger plate.