Paper and cardboard substrates namely, paper and cardboard with authenticating features used for protecting against counterfeiting and/or used for authentication; paper and cardboard substrates featuring windowed threads; windowed threads; fluorescing paper and cardboard substrates; plastic materials for packaging, namely substrates featuring windowed threads, fluorescing substrates, substrates, windowed threads; printed paper security documents and materials, namely, banknotes, travelers' checks, identity cards, financial bonds, certificates, passports, passbooks, licenses, permits, tickets, bank checks, check books, security printed cards, printed security cards vouchers, transportation tickets, entrance tickets, printed seals, paper labels, paper labels for indicating authenticity, paper labels used for branding and evidencing excise taxes have been paid, security tagged printing paper, watermarked printing paper, cylinder mold made watermarks, threaded printing paper, chemically treated printing paper, paper for printing the foregoing and security threads for use in the foregoing and in monetary tokens; paper security articles, namely substrates, substrates featuring windowed threads, fluorescing substrates, fluorescent fibers; machine readable codeable threads; security printed documents and materials, namely, substrates, substrates featuring windowed threads, fluorescing substrates, holographic seals; multi-marked paper; security threads, cards and sheets; security packaging consisting of or containing substrates and/or watermarks/fluorescent fibers