n. ~ Small, irregular, brown blemishes on paper. Citations: †(Roberts and Etherington 1982) Stains, specks, spots and blotches in paper. The cause or causes of foxing, which usually occurs in machine- [..]

A strip of rubber joining the upper and sole of a shoe. Typically found on canvas sneakers.

Refers to the condition of a book; intrinsic to paper, the patchy brownish-yellow spots that discolor plates and pages of a book. It is most likely caused by lack of ventilation and/or chemical reacti [..]

Brown spots thought to be caused by impurities in paper (e.g.: acid, exposure to humidity, etc.). Foxing is more likely to be encountered in older books.

rust colored spots which occur on paper resulting from oxidation of both organic and iron impurities left behind during the paper making process. Only when these impurities exist in the paper, given e [..]

A piece of leather trimming fitted into or on top of the rear quarters.

Spotting on a book, usually brown spots found on paper, of varying severity, caused by a chemical action wherein impurities in the paper oxidize. This is often exacerbated by an excessively humid...

Reddish-brown or yellowish spots resembling freckles on the paper of old documents (books, prints, etc.), a condition attributed to the effects of micro-organisms on iron or copper impurities in the p [..]

stain marks, usually brown, on the paper under the celluloid covering of a button.  Foxing is  caused by water, or even long exposure to high humidity, rusting the metal disk behind the   button paper [..]

Brown spots of mildew in the paper's surface that is actually a fungus. These spots of mildew, penetrating the paper, cannot be removed by erasing but may occasionally by removed by bleaching.

this term is used to describe a defect that appears as discoloration, spotting, or brown specs.  Pinback buttons, paper items, and textiles are susceptible to foxing, which generally results from expo [..]

, adj. scheming.

A discoloration, it is characterized by brown spots on works of art in books, prints, paintings, etc., due to dampness, and mold. Bleaching processes can remove these stains. Source: Ralph Mayer, &quo [..]

Reddish-brown mold spots that appear on paper and textiles due to water exposure or high levels of humidity.

Reddish-brown spots appearing mainly on paper objects, associated with mold growth and exposure to high humidity conditions.

Yellowish brown spots appearing as splotches on paper art. It often comes in a rather scattered pattern and is the cause of mould encouraged by damp storage of drawings and other art on paper. Conserv [..]