pamphlets, letters, posters, flyers, valentines, booklets, fliers, leaflets, brochure, telegrams, bookplates, missives, stamps, faxes, photographs, messages, stickers, mailers, cachets, mailings, envelopes, scrapbook, mugs, notepaper, postmarks, mementos, reproductions, keepsakes, pictures, trinkets, photos, facsimiles, lithos, matchbooks, handbills, emails, greetings, yearbooks, prints, souvenir, photocopies, portraits, posterboard, artwork, clothbound, postage stamp, lithographs, invitations, mochila, drawings, serigraph, murals, junkmail, fraktur, correspondence, letterhead, greeting card, paperweights, coasters, commemoratives, catalogs, billboards, postage, cardboard, etchings, poems, carte de visite, postbox, watercolors, quilts, shoebox, catalogues, ukes, bibelots, franking machine, cards, illustrations, maps, figurines, stereograph, tchotchkes, images, ex libris, picture postcard, matchboxes, sackfuls, texts, snapshots, lockets, dolls, mail pouch, memorabilia, unstamped, signatures, philatelist, stationery, newsletters, printouts, boxful, ephemera, pen pal, pictorial, postcard, advertisements, cartoons, guidebooks, papers, books, brochures, comics, movies, sermons, ads, almanacs, circulars

1st-class mail, 1st class, first-class mail, first class, priority mail